{
    "model": {
        "rank": 1512,
        "code": "thing-q40924",
        "model_id": "vr.tr.urine",
        "name": "urine",
        "purpose": "Enable an AI agent to recognise urine, assess the condition and evidential limits of a particular quantity, and determine suitable collection, testing, handling or disposition actions.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.MAT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q40924/",
        "tier": 2,
        "score": 142,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "human urine",
                "Gomutra",
                "Camel urine",
                "Aqua omnium florum"
            ],
            "aliasCount": 4,
            "merged": 4,
            "knownIn": 142,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": "vr.tr.urine",
            "source": {
                "dataset": "wikidata",
                "item": "Q40924",
                "url": "https://www.wikidata.org/wiki/Q40924",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-06T20:45:40Z",
                "providers": [
                    "Codex",
                    "Grok"
                ],
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "usd": 0.01238858,
                        "turns": 1,
                        "seconds": 134.6,
                        "error": null
                    },
                    "codex": {
                        "seconds": 61.5,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07875-9dec-7313-b4b8-e9d55290f248\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: urine\nRegistry id: vr.tr.urine\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy model"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q40924",
                "registryId": "vr.tr.urine",
                "name": "urine",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.MAT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q40924/",
            "model": {
                "registry_id": "vr.tr.urine",
                "name": "urine",
                "purpose": "Enable an AI agent to recognise urine, assess the condition and evidential limits of a particular quantity, and determine suitable collection, testing, handling or disposition actions.",
                "definition": "Urine is the aqueous excretory fluid produced by glomerular filtration of plasma and subsequent tubular reabsorption and secretion in the kidney, consisting mainly of water together with urea, creatinine, inorganic salts and other metabolic wastes, and stored in the bladder until voided.",
                "scope_statement": "This model owns urine as a biological material, including its origin, composition, physical condition, collection history, alterations and fitness for a stated use; it links to the producing organism, collection equipment, tests and downstream processes.",
                "in_scope": [
                    "Identity of urine and boundaries between native urine, mixtures, derivatives and synthetic substitutes",
                    "Producing organism and circumstances relevant to interpreting a particular quantity",
                    "Measured physical properties, constituents and observations",
                    "Collection, storage, preservation, contamination and changes after collection",
                    "Fitness and constraints for testing, handling, reuse or disposal"
                ],
                "out_of_scope": [
                    "Anatomy and function of kidneys, bladder and the urinary tract",
                    "Diagnosis, treatment and overall health state of the producing organism",
                    "Design and operation of catheters, collection vessels and analytical instruments",
                    "Complete laboratory assay protocols and clinical interpretation rules",
                    "Wastewater treatment systems, fertilizer products and environmental receiving systems"
                ],
                "distinguishing_features": [
                    "Establish whether the material was produced through an organism's urinary excretion pathway; colour and smell alone do not establish urine identity.",
                    "Distinguish native urine from synthetic urine using documented biological origin or preparation history; matching selected chemical measurements is insufficient.",
                    "Distinguish urine from other bodily fluids using collection location, collection procedure and supporting analytical evidence, recording uncertainty when provenance is missing.",
                    "Determine whether the quantity is urine alone or a mixture containing wash water, faeces, blood, cleaning agents or other materials; preserve the identity of added components.",
                    "Distinguish whole urine from isolated urinary constituents, dried residues and processed derivatives by recording separation and transformation history."
                ],
                "characteristics": [
                    {
                        "name": "Biological origin",
                        "kind": "relation",
                        "unit_or_values": "Producing organism or species reference; unknown; pooled sources",
                        "why_it_matters": "Establishes provenance and the context needed to interpret composition."
                    },
                    {
                        "name": "Material identity",
                        "kind": "category",
                        "unit_or_values": "Native urine; urine-containing mixture; urine-derived fraction; synthetic substitute; unresolved",
                        "why_it_matters": "Prevents applying conclusions about native urine to materially different substances."
                    },
                    {
                        "name": "Quantity and collection interval",
                        "kind": "measurement",
                        "unit_or_values": "Volume in mL or L; collection start and end times; completeness assessment",
                        "why_it_matters": "Distinguishes a specimen's volume from urine output measured over an interval."
                    },
                    {
                        "name": "Collection route",
                        "kind": "category",
                        "unit_or_values": "Voided; catheter sampling; direct procedural collection; environmental recovery; other documented route; unknown",
                        "why_it_matters": "Changes which contamination pathways and provenance limitations require consideration."
                    },
                    {
                        "name": "Appearance",
                        "kind": "state",
                        "unit_or_values": "Observed colour, clarity, sediment, foam and observation conditions",
                        "why_it_matters": "Records visible condition without treating appearance as a diagnosis or identity proof."
                    },
                    {
                        "name": "Acidity",
                        "kind": "measurement",
                        "unit_or_values": "pH with method, temperature where relevant and measurement time",
                        "why_it_matters": "Characterises chemical condition and supports investigation of changes during storage."
                    },
                    {
                        "name": "Concentration indicators",
                        "kind": "measurement",
                        "unit_or_values": "Specific gravity, dimensionless; osmolality in mOsm/kg; method and measurement time",
                        "why_it_matters": "Provides context for constituent concentrations without treating the indicators as interchangeable."
                    },
                    {
                        "name": "Constituent profile",
                        "kind": "measurement",
                        "unit_or_values": "Named analyte or particle, result, unit, method, detection limits and measurement time",
                        "why_it_matters": "Separates measured constituents from assumptions based on typical urine composition."
                    },
                    {
                        "name": "Preservation history",
                        "kind": "state",
                        "unit_or_values": "Elapsed time, temperature history, additives, light exposure and freeze-thaw events",
                        "why_it_matters": "Supports assessment of whether the material still represents the quantity originally collected."
                    },
                    {
                        "name": "Fitness for intended use",
                        "kind": "state",
                        "unit_or_values": "Unassessed; suitable; conditionally suitable; unsuitable; indeterminate, linked to purpose and acceptance criteria",
                        "why_it_matters": "Makes suitability specific to a test or process rather than an intrinsic property of urine."
                    }
                ],
                "affordances": [
                    "Collect and label a discrete specimen or timed collection with its provenance and completeness.",
                    "Observe, measure and compare properties using methods appropriate to the intended question.",
                    "Divide, preserve or transport aliquots while maintaining their relationship to the original quantity.",
                    "Assess contamination, alteration and suitability against the requirements of a specified test or process.",
                    "Route the material to authorised testing, processing, reuse or disposal under applicable handling requirements."
                ]
            },
            "sources": [
                {
                    "id": "guyton-hall-physiology",
                    "title": "Guyton and Hall Textbook of Medical Physiology (urine formation, renal concentrating mechanism, micturition)",
                    "url": "",
                    "what_it_supports": "Physiological definition, daily volume, osmolality and pH ranges, and the distinction between glomerular filtrate and final urine."
                },
                {
                    "id": "clsi-gp16",
                    "title": "GP16: Urinalysis - Approved Guideline",
                    "url": "",
                    "what_it_supports": "Clinical collection kinds (random, first-morning, timed, midstream, catheter, suprapubic), specimen handling, and routine physical/chemical/microscopic measurements."
                },
                {
                    "id": "european-urinalysis-guidelines-2000",
                    "title": "European urinalysis guidelines",
                    "url": "",
                    "what_it_supports": "European laboratory practice for collection, particle analysis, and interpretation of dipstick and sediment findings."
                },
                {
                    "id": "who-excreta-greywater-2006",
                    "title": "Guidelines for the Safe Use of Wastewater, Excreta and Greywater, Volume 4: Excreta and Greywater Use in Agriculture",
                    "url": "",
                    "what_it_supports": "Agricultural reuse of source-separated urine, pathogen and chemical hazards, and regional sanitation practice."
                },
                {
                    "id": "samhsa-workplace-drug-testing",
                    "title": "Mandatory Guidelines for Federal Workplace Drug Testing Programs",
                    "url": "",
                    "what_it_supports": "Urine as a regulated forensic specimen; validity tests that separate urine from water or adulterated substitutes (creatinine, specific gravity, temperature)."
                },
                {
                    "id": "wada-isti",
                    "title": "International Standard for Testing and Investigations",
                    "url": "",
                    "what_it_supports": "Observed urine collection for anti-doping, chain of custody, and sample-splitting practice."
                }
            ],
            "structure": {
                "bundles": [
                    {
                        "id": "urinary-identity",
                        "name": "Urinary identity",
                        "description": "Establishes what qualifies the material as urine and where that identity becomes uncertain.",
                        "rationale": "Urine can resemble other liquids, be mixed with them or be simulated; identity cannot rest on appearance alone.",
                        "layers": [
                            {
                                "id": "biological-origin",
                                "name": "Biological origin",
                                "description": "Connects the material to a producing organism and urinary origin.",
                                "findings": [
                                    {
                                        "id": "origin-evidence",
                                        "name": "Evidence of urinary origin",
                                        "description": "Record the evidence for biological urinary origin and its limitations.",
                                        "questions": [
                                            {
                                                "text": "What evidence establishes that this material originated from urinary excretion?",
                                                "kind": "definition",
                                                "id": "origin-evidence-q01"
                                            },
                                            {
                                                "text": "Which organism, species or pooled source produced it, and how securely is that association documented?",
                                                "kind": "provenance",
                                                "id": "origin-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "mixtures-and-derivatives",
                                "name": "Mixtures and derivatives",
                                "description": "Separates native urine from substitutes, admixtures and processed fractions.",
                                "findings": [
                                    {
                                        "id": "urine-material-boundary",
                                        "name": "Boundary of the urine material",
                                        "description": "Record additions, separations and transformations that affect what the quantity should be called.",
                                        "questions": [
                                            {
                                                "text": "Is this native urine, a urine-containing mixture, a separated fraction or a synthetic preparation?",
                                                "kind": "boundary",
                                                "id": "urine-material-boundary-q01"
                                            },
                                            {
                                                "text": "What additions or processing steps are known, and which component proportions remain unknown?",
                                                "kind": "provenance",
                                                "id": "urine-material-boundary-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "collection-and-representation",
                        "name": "Collection and representation",
                        "description": "Defines how the urine was obtained and what period or source the collected quantity represents.",
                        "rationale": "A spot specimen, a timed collection and urine recovered from a surface support different conclusions.",
                        "layers": [
                            {
                                "id": "collection-circumstances",
                                "name": "Collection circumstances",
                                "description": "Records the route and circumstances through which urine entered the collection.",
                                "findings": [
                                    {
                                        "id": "collection-route-and-context",
                                        "name": "Collection route and context",
                                        "description": "Capture circumstances that may affect composition or introduce other material.",
                                        "questions": [
                                            {
                                                "text": "Was the urine voided, obtained through a catheter or procedure, or recovered after contact with another surface?",
                                                "kind": "provenance",
                                                "id": "collection-route-and-context-q01"
                                            },
                                            {
                                                "text": "Which relevant circumstances, such as collection timing, fluid intake or medication exposure, are documented rather than assumed?",
                                                "kind": "provenance",
                                                "id": "collection-route-and-context-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "quantity-and-coverage",
                                "name": "Quantity and coverage",
                                "description": "Distinguishes collected amount from the excretion interval it may represent.",
                                "findings": [
                                    {
                                        "id": "collection-completeness",
                                        "name": "Collection completeness",
                                        "description": "Record measured volume and whether the collection captures its intended interval or fraction.",
                                        "questions": [
                                            {
                                                "text": "What urine volume was measured, by what method, and over what collection interval if any?",
                                                "kind": "measurement",
                                                "id": "collection-completeness-q01"
                                            },
                                            {
                                                "text": "Were any voids, portions or transfers missed, spilled or excluded, and how does that limit representativeness?",
                                                "kind": "boundary",
                                                "id": "collection-completeness-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "urine-properties-and-constituents",
                        "name": "Urine properties and constituents",
                        "description": "Records observable condition and measured composition without inferring an organism's diagnosis.",
                        "rationale": "Urine's usefulness depends on specific observations and measurements whose meaning varies with methods and context.",
                        "layers": [
                            {
                                "id": "physical-and-chemical-condition",
                                "name": "Physical and chemical condition",
                                "description": "Captures appearance, acidity and concentration indicators at a stated time.",
                                "findings": [
                                    {
                                        "id": "bulk-property-observations",
                                        "name": "Bulk property observations",
                                        "description": "Record bulk properties together with observation conditions and measurement methods.",
                                        "questions": [
                                            {
                                                "text": "What colour, clarity, sediment or other visible features were observed, and when relative to collection?",
                                                "kind": "measurement",
                                                "id": "bulk-property-observations-q01"
                                            },
                                            {
                                                "text": "What pH, specific gravity or osmolality results are available, with units where applicable and methods?",
                                                "kind": "measurement",
                                                "id": "bulk-property-observations-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "dissolved-and-particulate-content",
                                "name": "Dissolved and particulate content",
                                "description": "Describes measured chemicals, cells, crystals, casts and microorganisms.",
                                "findings": [
                                    {
                                        "id": "constituent-evidence",
                                        "name": "Constituent evidence",
                                        "description": "Separate direct analytical results from inferred presence, absence or biological significance.",
                                        "questions": [
                                            {
                                                "text": "Which dissolved constituents, cells, crystals, casts or microorganisms were examined, and what results and analytical limits were reported?",
                                                "kind": "measurement",
                                                "id": "constituent-evidence-q01"
                                            },
                                            {
                                                "text": "Which conclusions about constituent origin or significance require a linked assay or organism model?",
                                                "kind": "boundary",
                                                "id": "constituent-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "post-collection-integrity",
                        "name": "Post-collection integrity",
                        "description": "Tracks how urine changes or acquires extraneous material between collection and use.",
                        "rationale": "The condition of stored urine may differ from its condition at excretion, affecting what an agent can conclude or do.",
                        "layers": [
                            {
                                "id": "storage-and-preservation",
                                "name": "Storage and preservation",
                                "description": "Records conditions that may preserve or alter particular urine properties.",
                                "findings": [
                                    {
                                        "id": "preservation-exposure-history",
                                        "name": "Preservation and exposure history",
                                        "description": "Maintain a time-linked history of storage conditions and deliberate preservation.",
                                        "questions": [
                                            {
                                                "text": "What elapsed times, temperatures, light exposures and freeze-thaw events occurred before observation or testing?",
                                                "kind": "provenance",
                                                "id": "preservation-exposure-history-q01"
                                            },
                                            {
                                                "text": "Which preservatives or other additives were introduced, in what amounts and for which intended measurements?",
                                                "kind": "provenance",
                                                "id": "preservation-exposure-history-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "contamination-and-change",
                                "name": "Contamination and change",
                                "description": "Distinguishes possible collection contamination from constituents present at excretion and later alterations.",
                                "findings": [
                                    {
                                        "id": "integrity-evidence",
                                        "name": "Evidence of compromised integrity",
                                        "description": "Record suspected contamination or alteration with evidence and unresolved alternatives.",
                                        "questions": [
                                            {
                                                "text": "What evidence indicates admixture, dilution, evaporation, microbial change or precipitation after collection?",
                                                "kind": "measurement",
                                                "id": "integrity-evidence-q01"
                                            },
                                            {
                                                "text": "Can observed blood, cells, microorganisms or foreign chemicals be attributed to the original urine, collection contamination or later change?",
                                                "kind": "boundary",
                                                "id": "integrity-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-disposition",
                        "name": "Use and disposition",
                        "description": "Connects the urine's documented condition to a specific proposed use and subsequent handling.",
                        "rationale": "The same urine quantity may be acceptable for one measurement or process and unsuitable for another.",
                        "layers": [
                            {
                                "id": "purpose-specific-suitability",
                                "name": "Purpose-specific suitability",
                                "description": "Assesses whether provenance, amount and condition meet an intended use's requirements.",
                                "findings": [
                                    {
                                        "id": "acceptance-for-use",
                                        "name": "Acceptance for intended use",
                                        "description": "Link suitability decisions to explicit requirements and the evidence available.",
                                        "questions": [
                                            {
                                                "text": "Which test or process is proposed, and what requirements does it impose on urine collection, volume, container and preservation?",
                                                "kind": "action",
                                                "id": "acceptance-for-use-q01"
                                            },
                                            {
                                                "text": "Does this quantity meet those requirements, or is recollection, additional evidence or a qualified result needed?",
                                                "kind": "action",
                                                "id": "acceptance-for-use-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-final-route",
                                "name": "Handling and final route",
                                "description": "Records constraints on transferring, processing, retaining or disposing of the urine.",
                                "findings": [
                                    {
                                        "id": "permitted-material-actions",
                                        "name": "Permitted material actions",
                                        "description": "Determine the next material action from intended purpose, known contents and applicable requirements.",
                                        "questions": [
                                            {
                                                "text": "What handling constraints follow from the urine's source, suspected biological hazards, chemical contents or added preservatives?",
                                                "kind": "action",
                                                "id": "permitted-material-actions-q01"
                                            },
                                            {
                                                "text": "Which authorised route applies next: testing, retained storage, treatment, reuse or disposal, and what conditions must be met?",
                                                "kind": "action",
                                                "id": "permitted-material-actions-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Random (spot) voided urine",
                                            "First-morning urine",
                                            "Timed 24-hour urine",
                                            "Midstream clean-catch urine",
                                            "Catheterized urine (in-and-out or indwelling)",
                                            "Suprapubic aspirate",
                                            "Ureteral or laterality-split urine",
                                            "Source-separated human urine (sanitation/fertilizer stream)"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of urine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "scheme": "MeSH",
                                                "value_or_pattern": "D014556",
                                                "note": "Descriptor Urine; the heading for the fluid as a body substance, not for individual urine tests."
                                            },
                                            {
                                                "scheme": "UBERON",
                                                "value_or_pattern": "UBERON:0001088",
                                                "note": "Anatomical/material entity urine in the Uberon anatomy ontology."
                                            },
                                            {
                                                "scheme": "SNOMED CT",
                                                "value_or_pattern": "78014005",
                                                "note": "Urine (substance). Distinct from specimen concept 122575003 |Urine specimen|."
                                            },
                                            {
                                                "scheme": "NCIt",
                                                "value_or_pattern": "C13283",
                                                "note": "NCI Thesaurus concept Urine."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of urine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-standards-and-regulation",
                                        "name": "Standards and regulation",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "CLSI GP16 (Urinalysis), Clinical and Laboratory Standards Institute",
                                            "European urinalysis guidelines (2000), European Confederation of Laboratory Medicine",
                                            "Mandatory Guidelines for Federal Workplace Drug Testing Programs, SAMHSA / U.S. Department of Health and Human Services",
                                            "49 CFR Part 40 (procedures for transportation workplace drug and alcohol testing), U.S. Department of Transportation",
                                            "International Standard for Testing and Investigations (urine sample collection), World Anti-Doping Agency",
                                            "Guidelines for the Safe Use of Wastewater, Excreta and Greywater (2006), World Health Organization",
                                            "ISO 30500:2018 (non-sewered sanitation systems), International Organization for Standardization",
                                            "CLIA, 42 CFR Part 493 (clinical laboratory testing including urinalysis), CMS and CDC"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of urine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Point-of-care and laboratory urinalysis (dipstick plus microscopy) for urinary tract infection, hematuria, proteinuria and metabolic screening",
                                            "Quantitative 24-hour chemistry (protein, albumin, creatinine clearance, electrolytes, metanephrines, cortisol) in nephrology and endocrinology",
                                            "Immunoassay pregnancy testing (urinary hCG) and selected infectious-disease antigen tests",
                                            "Workplace, forensic and anti-doping drug testing on observed or unobserved voids",
                                            "Microbiological culture of midstream, catheter or suprapubic specimens to diagnose UTI",
                                            "Source-separated collection in urine-diverting toilets for fertilizer after storage or treatment",
                                            "Veterinary clinical chemistry and livestock estrus/pregnancy testing",
                                            "Wastewater epidemiology (population-level drug, pathogen and metabolite loads)"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of urine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "quantity": "24-hour volume (adult)",
                                                "typical_range": "0.8-2.0",
                                                "unit": "L/day"
                                            },
                                            {
                                                "quantity": "Specific gravity",
                                                "typical_range": "1.003-1.030",
                                                "unit": "dimensionless (true density relative to water)"
                                            },
                                            {
                                                "quantity": "pH",
                                                "typical_range": "4.5-8.0 (usual fasting ~5.5-6.5)",
                                                "unit": "pH units"
                                            },
                                            {
                                                "quantity": "Osmolality",
                                                "typical_range": "50-1200 (typical hydrated adult ~300-900)",
                                                "unit": "mOsm/kg water"
                                            },
                                            {
                                                "quantity": "Protein excretion",
                                                "typical_range": "<150",
                                                "unit": "mg/day"
                                            },
                                            {
                                                "quantity": "Creatinine concentration (spot, validity/concentration marker)",
                                                "typical_range": "roughly 20-400 in undiluted adult voids; validity cut-offs are programme-specific",
                                                "unit": "mg/dL"
                                            },
                                            {
                                                "quantity": "Void temperature shortly after collection (drug-testing validity)",
                                                "typical_range": "32-38",
                                                "unit": "°C"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of urine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Delayed analysis: bacterial overgrowth, nitrite artefact, pH rise from urease, lysis of cells and dissolution of casts",
                                            "Contaminated void (periurethral or vaginal flora) misread as urinary tract infection",
                                            "Catheter-associated urinary tract infection and, rarely, urosepsis",
                                            "Specimen substitution, dilution or chemical adulteration in drug testing",
                                            "Pigment nephropathy from massive hemoglobinuria or myoglobinuria",
                                            "Incontinence-associated dermatitis and ammonia injury to skin",
                                            "Urease-driven struvite/apatite scaling and odour in pipes and urine-diverting systems",
                                            "Pathogen, pharmaceutical and hormone load when untreated urine enters water or is reused in agriculture"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of urine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            "Laboratory reporting units differ (conventional mg/dL versus SI mmol/L or mmol/day; albumin as mg/mmol creatinine is standard in much of Europe and Australia)",
                                            "Source-separated urine reuse is an established sanitation practice in parts of Sweden and Germany and in some programmes in southern Africa; night-soil use was historically common in parts of East Asia",
                                            "First-morning urine is given special diagnostic weight in several traditional medical systems (including Ayurvedic and East Asian practice) as well as in Western protein/pregnancy testing",
                                            "Clean-catch technique, chaperoning and observed collection are shaped by local modesty norms, circumcision prevalence and anti-doping or workplace rules",
                                            "Colloquial names (pee, wee, piss) and legal treatment of public urination vary widely by jurisdiction"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of urine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.",
                                        "evidence": [
                                            {
                                                "name": "Water or substituted liquid",
                                                "difference": "Authentic recent urine has creatinine and specific gravity above programme cut-offs and, if measured promptly, a void temperature of about 32-38 °C; water fails these validity tests."
                                            },
                                            {
                                                "name": "Semen",
                                                "difference": "Microscopy shows spermatozoa; biochemical markers such as PSA or acid phosphatase are present in semen and absent or negligible in urine."
                                            },
                                            {
                                                "name": "Vaginal fluid or leukorrhea",
                                                "difference": "Dominated by squamous epithelial cells (and often clue cells or yeasts); creatinine and urea remain far below urinary levels."
                                            },
                                            {
                                                "name": "Amniotic fluid",
                                                "difference": "Ferning and PAMG-1 or IGFBP-1 immunoassays identify amniotic fluid; late-pregnancy fetal urine is much higher in creatinine and urea than amniotic fluid."
                                            },
                                            {
                                                "name": "Sweat",
                                                "difference": "Sweat has much lower urea and creatinine and a different Na/K ratio; it is not stored in a bladder and is not recovered by urethral void."
                                            },
                                            {
                                                "name": "Bladder irrigant or washings",
                                                "difference": "Near-plasma or near-water chemistry with very low creatinine, obtained in a surgical or catheter-flush context rather than a physiologic void."
                                            },
                                            {
                                                "name": "Hemoglobinuria versus myoglobinuria (pigmented urine)",
                                                "difference": "Both darken the dipstick occult-blood pad; centrifugation and plasma colour, immunoassay, or ammonium-sulfate precipitation separate free hemoglobin (often pink plasma) from myoglobin (clear plasma)."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of urine this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does the registry intend urine to cover all producing species, including excretions in which urinary and faecal components are normally combined?",
                "At what degree of admixture or processing should a material become a linked mixture or derivative rather than an instance of urine?",
                "Which source-backed, assay-specific criteria should govern acceptable collection, storage, preservation and rejection?",
                "What evidence is sufficient to classify material of uncertain origin as urine, and how should conflicting provenance and analytical evidence be represented?",
                "Which intended uses must the first researched model support: clinical testing, research, environmental assessment, resource recovery or others?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 18,
                "questions": 28
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "chemical substance or material",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a urine, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise urine, assess the condition and evidential limits of a particular quantity, and determine suitable collection, testing, handling or disposition actions.",
            "characteristics": {
                "substance": "material",
                "origin": "natural",
                "agency": "inert",
                "mobility": "varies"
            },
            "whatYouCanDoWithIt": [
                "observed and measured",
                "consumed or used up"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: human urine, Gomutra, Camel urine, Aqua omnium florum.",
                "4 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 142 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a urine, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "matter you can touch",
            "physicalCharacter": [
                "Mobility varies between examples.",
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state",
                "use it up, and then need more of it"
            ],
            "howItIsRecognised": [
                "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "human urine",
                        "Gomutra",
                        "Camel urine",
                        "Aqua omnium florum"
                    ]
                }
            ],
            "standing": "Described in 142 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 4 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one urine from another, and a urine from things that resemble it.",
                        "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                        "layers": [
                            {
                                "id": "naming-and-identifiers",
                                "name": "Names and identifiers",
                                "description": "The names this thing goes by and the identifiers that survive translation and time.",
                                "findings": [
                                    {
                                        "id": "preferred-name-and-aliases",
                                        "name": "Preferred name, aliases and local names",
                                        "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                        "questions": [
                                            {
                                                "id": "preferred-name-and-aliases-q01",
                                                "text": "What identifies and describes the name of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q02",
                                                "text": "Who or what asserted this about the name of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q03",
                                                "text": "What may an agent decide or do once the name of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "stable-identifiers",
                                        "name": "Stable identifiers and external keys",
                                        "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                        "questions": [
                                            {
                                                "id": "stable-identifiers-q01",
                                                "text": "What identifies and describes an identifier for a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q02",
                                                "text": "Who or what asserted this about an identifier for a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q03",
                                                "text": "What may an agent decide or do once an identifier for a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification-and-granularity",
                                "name": "Classification and granularity",
                                "description": "Where a urine sits among kinds, and how finely a task needs to cut it.",
                                "findings": [
                                    {
                                        "id": "kind-and-parents",
                                        "name": "Kind, parents and neighbouring kinds",
                                        "description": "The classes this thing belongs to and the ones it is next to.",
                                        "questions": [
                                            {
                                                "id": "kind-and-parents-q01",
                                                "text": "What identifies and describes the kind of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q02",
                                                "text": "Who or what asserted this about the kind of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q03",
                                                "text": "What may an agent decide or do once the kind of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "distinguishing-features",
                                        "name": "Distinguishing features",
                                        "description": "What separates a urine from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q02",
                                                "text": "Who or what asserted this about what distinguishes a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q03",
                                                "text": "What may an agent decide or do once what distinguishes a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "form-and-composition",
                        "name": "Form, composition and condition",
                        "description": "What a urine is made of, what shape and size it takes, and what state it is in.",
                        "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.",
                        "layers": [
                            {
                                "id": "form-and-dimensions",
                                "name": "Form and dimensions",
                                "description": "Shape, size, mass and the ranges these take across examples.",
                                "findings": [
                                    {
                                        "id": "measurable-dimensions",
                                        "name": "Measurable dimensions and their units",
                                        "description": "The quantities worth recording and the units they are recorded in.",
                                        "questions": [
                                            {
                                                "id": "measurable-dimensions-q01",
                                                "text": "What identifies and describes the dimensions of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q02",
                                                "text": "Who or what asserted this about the dimensions of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "measurable-dimensions-q03",
                                                "text": "What may an agent decide or do once the dimensions of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "material-and-composition",
                                "name": "Material and composition",
                                "description": "Materials, parts and how they are put together.",
                                "findings": [
                                    {
                                        "id": "parts-and-materials",
                                        "name": "Parts and materials",
                                        "description": "What a urine is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q02",
                                                "text": "Who or what asserted this about the composition of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "parts-and-materials-q03",
                                                "text": "What may an agent decide or do once the composition of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "condition-and-integrity",
                                "name": "Condition and integrity",
                                "description": "Wear, damage, health and the difference between working and broken.",
                                "findings": [
                                    {
                                        "id": "condition-assessment",
                                        "name": "Condition, damage and health",
                                        "description": "How the condition of a urine is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q02",
                                                "text": "Who or what asserted this about the condition of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "condition-assessment-q03",
                                                "text": "What may an agent decide or do once the condition of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "place-and-movement",
                        "name": "Place and movement",
                        "description": "Where a urine is, how it got there and where it may go (varies).",
                        "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.",
                        "layers": [
                            {
                                "id": "location-and-placement",
                                "name": "Location and placement",
                                "description": "Position, containment and the reference frame the position is given in.",
                                "findings": [
                                    {
                                        "id": "position-and-frame",
                                        "name": "Position, container and reference frame",
                                        "description": "Where a urine is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q02",
                                                "text": "Who or what asserted this about the location of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "position-and-frame-q03",
                                                "text": "What may an agent decide or do once the location of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "movement-and-transfer",
                                "name": "Movement and transfer",
                                "description": "How a urine is carried, installed or relocated.",
                                "findings": [
                                    {
                                        "id": "movement-events",
                                        "name": "Movement events and constraints",
                                        "description": "What counts as a movement, what records it and what limits it.",
                                        "questions": [
                                            {
                                                "id": "movement-events-q01",
                                                "text": "What identifies and describes the movement of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q02",
                                                "text": "Who or what asserted this about the movement of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "movement-events-q03",
                                                "text": "What may an agent decide or do once the movement of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-and-lifecycle",
                        "name": "State and lifecycle",
                        "description": "The states a urine passes through and the events that move it between them.",
                        "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                        "layers": [
                            {
                                "id": "lifecycle-stages",
                                "name": "Lifecycle stages",
                                "description": "From coming into existence to ceasing to be one of these.",
                                "findings": [
                                    {
                                        "id": "stages-and-transitions",
                                        "name": "Stages and transitions",
                                        "description": "The stages worth naming and what moves a urine between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q02",
                                                "text": "Who or what asserted this about the lifecycle of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q03",
                                                "text": "What may an agent decide or do once the lifecycle of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "observations-and-status",
                                "name": "Observations and current status",
                                "description": "What is observed about a urine, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a urine is recorded so that it can be superseded rather than overwritten.",
                                        "questions": [
                                            {
                                                "id": "observation-record-q01",
                                                "text": "What identifies and describes an observation of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q02",
                                                "text": "Who or what asserted this about an observation of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q03",
                                                "text": "What may an agent decide or do once an observation of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "use-and-operation",
                        "name": "Use and operation",
                        "description": "What can be done with a urine and what it takes to do it.",
                        "rationale": "An agent that can recognise a thing but not act on it has only half a model.",
                        "layers": [
                            {
                                "id": "intended-use",
                                "name": "Intended use and function",
                                "description": "What a urine is for, and what it is used for anyway.",
                                "findings": [
                                    {
                                        "id": "function-and-purpose",
                                        "name": "Function, purpose and misuse",
                                        "description": "The function a urine performs and the uses that fall outside it.",
                                        "questions": [
                                            {
                                                "id": "function-and-purpose-q01",
                                                "text": "What identifies and describes the use of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q02",
                                                "text": "Who or what asserted this about the use of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "function-and-purpose-q03",
                                                "text": "What may an agent decide or do once the use of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "handling-and-procedure",
                                "name": "Handling and procedure",
                                "description": "The steps, skills and tools involved in using a urine.",
                                "findings": [
                                    {
                                        "id": "procedures-and-skills",
                                        "name": "Procedures, skills and required tools",
                                        "description": "What an agent needs before it can act on a urine at all.",
                                        "questions": [
                                            {
                                                "id": "procedures-and-skills-q01",
                                                "text": "What identifies and describes handling a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q02",
                                                "text": "Who or what asserted this about handling a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "procedures-and-skills-q03",
                                                "text": "What may an agent decide or do once handling a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "supply-and-consumption",
                                "name": "Supply and consumption",
                                "description": "Quantities, rates and what running out means.",
                                "findings": [
                                    {
                                        "id": "consumption-and-stock",
                                        "name": "Consumption, stock and replenishment",
                                        "description": "How much of a urine there is and how fast it goes.",
                                        "questions": [
                                            {
                                                "id": "consumption-and-stock-q01",
                                                "text": "What identifies and describes the supply of a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q02",
                                                "text": "Who or what asserted this about the supply of a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "consumption-and-stock-q03",
                                                "text": "What may an agent decide or do once the supply of a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "composition-and-identity",
                        "name": "Composition, grade and chemical identity",
                        "description": "What urine is made of and how pure the thing in hand is.",
                        "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.",
                        "layers": [
                            {
                                "id": "chemical-identity",
                                "name": "Chemical identity",
                                "description": "Formula, structure and the registry numbers that name it unambiguously.",
                                "findings": [
                                    {
                                        "id": "identity-record",
                                        "name": "Identity and registry numbers",
                                        "description": "What identifies this substance across suppliers and regulators.",
                                        "questions": [
                                            {
                                                "id": "identity-record-q01",
                                                "text": "What formula, structure and registry identifiers name urine unambiguously?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "identity-record-q02",
                                                "text": "Which related substances share a name in common use but not an identifier?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "grade-and-impurities",
                                "name": "Grade, purity and impurities",
                                "description": "The specification a batch meets and what else is in it.",
                                "findings": [
                                    {
                                        "id": "specification",
                                        "name": "Specification and assay",
                                        "description": "How purity is stated and measured, and which impurities matter.",
                                        "questions": [
                                            {
                                                "id": "specification-q01",
                                                "text": "What grades of urine exist, how is purity assayed, and which impurities are limited?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "specification-q02",
                                                "text": "Which use requires which grade, and what happens when a lower grade is substituted?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "properties-and-behaviour",
                        "name": "Properties and behaviour",
                        "description": "How urine behaves under conditions an agent can measure or change.",
                        "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.",
                        "layers": [
                            {
                                "id": "physical-constants",
                                "name": "Physical constants",
                                "description": "Values that hold for the pure substance, with their conditions.",
                                "findings": [
                                    {
                                        "id": "constants-record",
                                        "name": "Constants and conditions",
                                        "description": "The quantities worth recording and the state they apply in.",
                                        "questions": [
                                            {
                                                "id": "constants-record-q01",
                                                "text": "What are the defining physical constants of urine, in what units and under what conditions?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "constants-record-q02",
                                                "text": "Which of these values change with grade or form rather than being fixed?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "stability-and-reactivity",
                                "name": "Stability and reactivity",
                                "description": "What it reacts with, degrades into, and how it is stored.",
                                "findings": [
                                    {
                                        "id": "incompatibilities",
                                        "name": "Incompatibilities and degradation",
                                        "description": "What must not meet it, and what it becomes over time.",
                                        "questions": [
                                            {
                                                "id": "incompatibilities-q01",
                                                "text": "What is urine incompatible with, and what does it degrade into under storage?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "incompatibilities-q02",
                                                "text": "What storage and handling does that require, and who is competent to do it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "hazard-and-regulation",
                        "name": "Hazard classification and regulation",
                        "description": "How urine can harm, and what the law says about holding and moving it.",
                        "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.",
                        "layers": [
                            {
                                "id": "hazard-class",
                                "name": "Hazard classification",
                                "description": "Classified hazards, exposure limits and protective measures.",
                                "findings": [
                                    {
                                        "id": "classified-hazards",
                                        "name": "Classified hazards and limits",
                                        "description": "The classification, the scheme it belongs to, and the limits set.",
                                        "questions": [
                                            {
                                                "id": "classified-hazards-q01",
                                                "text": "How is urine classified for hazard, under which scheme, and what exposure limits apply?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "classified-hazards-q02",
                                                "text": "What protection does handling require, and what must an agent refuse to do without it?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "regulatory-identity",
                                "name": "Regulatory identity and control",
                                "description": "Registration, restriction and transport rules by jurisdiction.",
                                "findings": [
                                    {
                                        "id": "controls",
                                        "name": "Controls and jurisdiction",
                                        "description": "Where it is restricted and what the restriction attaches to.",
                                        "questions": [
                                            {
                                                "id": "controls-q01",
                                                "text": "Which registrations, restrictions or transport rules cover urine, and where?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "controls-q02",
                                                "text": "Does the control attach to the substance, its concentration, or its intended use?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a urine came from and when it held.",
                        "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                        "layers": [
                            {
                                "id": "source-and-authority",
                                "name": "Source and authority",
                                "description": "Who said it, on what evidence, and how strongly.",
                                "findings": [
                                    {
                                        "id": "claim-provenance",
                                        "name": "Claim provenance and confidence",
                                        "description": "The authority behind each claim about a urine and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q02",
                                                "text": "Who or what asserted this about a claim about a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q03",
                                                "text": "What may an agent decide or do once a claim about a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "time-and-versions",
                                "name": "Time, versions and supersession",
                                "description": "When a claim was true, when it was learnt, and what replaced it.",
                                "findings": [
                                    {
                                        "id": "validity-and-supersession",
                                        "name": "Validity period and supersession",
                                        "description": "How an old claim about a urine is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a urine, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q02",
                                                "text": "Who or what asserted this about the validity of a claim about a urine, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q03",
                                                "text": "What may an agent decide or do once the validity of a claim about a urine is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 9,
                "layers": 20,
                "findings": 22,
                "questions": 60
            }
        }
    }
}