{
    "model": {
        "rank": 5873,
        "code": "thing-q58702",
        "model_id": "vr.tr.mortality-rate",
        "name": "mortality rate",
        "purpose": "Let an agent handle mortality rates by definition, population, period, source and comparison, neutrally and with care for sensitive contexts.",
        "family": "Thing Registry",
        "category": "Cross-cutting context",
        "status": "research-draft",
        "kind": "thing",
        "plane": "XCT",
        "domain": "XCT.QTY",
        "industry": "",
        "version": "",
        "url": "/models/thing/q58702/",
        "tier": 2,
        "score": 64,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "COVID-19 mortality",
                "monkeypox mortality",
                "Adult mortality",
                "maternal mortality ratio",
                "Maternal Mortality Rate",
                "catastrophic mortality",
                "child mortality",
                "excess mortality",
                "early neonatal mortality rate",
                "Child mortality in Ghana"
            ],
            "aliasCount": 10,
            "merged": 10,
            "knownIn": 64,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q58702",
                "url": "https://www.wikidata.org/wiki/Q58702",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-11T07:40:03Z",
                "providers": [
                    "Claude"
                ],
                "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
                "pass": 2,
                "wave": 1,
                "engine": "claude"
            },
            "metaModel": {
                "id": "THING-Q58702",
                "registryId": "vr.tr.mortality-rate",
                "name": "mortality rate",
                "version": "0.2.0-wave.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "XCT.QTY"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q58702/",
            "model": {
                "registry_id": "vr.tr.mortality-rate",
                "name": "mortality rate",
                "purpose": "Let an agent handle mortality rates by definition, population, period, source and comparison, neutrally and with care for sensitive contexts.",
                "definition": "A measure of the number of deaths in a population, scaled to its size, per unit of time, such as the crude death rate per 1000 per year, infant and maternal mortality, or cause-specific mortality.",
                "what_it_is_for": "Measuring population health and the burden of diseases and events.",
                "affordances": [
                    "compute and compare rates",
                    "use age-standardised rates",
                    "cite official statistics",
                    "track health targets"
                ],
                "distinguishing_features": [
                    "Deaths relative to population and time",
                    "Crude or standardised",
                    "Many specific rates",
                    "Different from case fatality rate"
                ],
                "appearance": "Numbers in tables, charts and reports.",
                "visual_identification": [
                    "Rates per 1000 or 100000",
                    "Kinds such as infant or maternal mortality",
                    "Case fatality rate is a different measure"
                ],
                "physical_properties": [],
                "families_and_kinds": [
                    "crude death rate",
                    "age-specific and standardised rates",
                    "infant and under-5 mortality",
                    "maternal mortality ratio",
                    "cause-specific mortality"
                ],
                "related_models": [
                    {
                        "relation": "is a kind of",
                        "target": "risk metric",
                        "why": "category"
                    },
                    {
                        "relation": "is used in",
                        "target": "demography and epidemiology",
                        "why": "fields"
                    },
                    {
                        "relation": "is confused with",
                        "target": "case fatality rate",
                        "why": "different measure"
                    },
                    {
                        "relation": "is published by",
                        "target": "statistical offices and WHO",
                        "why": "sources"
                    }
                ],
                "identifiers": [],
                "standards_and_regulation": [
                    "WHO ICD mortality coding rules",
                    "SDG indicators 3.1 and 3.2"
                ],
                "failure_modes_and_hazards": [
                    "Comparing crude rates across different age structures",
                    "Confusing mortality with case fatality",
                    "Insensitive presentation"
                ],
                "in_scope": [],
                "out_of_scope": [],
                "characteristics": []
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "definition",
                        "name": "Definition",
                        "description": "Which rate.",
                        "rationale": "Definitions differ.",
                        "layers": [
                            {
                                "id": "kind",
                                "name": "Kind",
                                "description": "Crude, specific.",
                                "findings": [
                                    {
                                        "id": "kind-finding",
                                        "name": "Kind",
                                        "description": "Rate type.",
                                        "questions": [
                                            {
                                                "text": "Which mortality rate is meant?",
                                                "kind": "definition"
                                            },
                                            {
                                                "text": "Per how many people and over what period?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "population",
                                "name": "Population",
                                "description": "Denominator.",
                                "findings": [
                                    {
                                        "id": "population-finding",
                                        "name": "Population",
                                        "description": "Population.",
                                        "questions": [
                                            {
                                                "text": "Which population is the denominator?",
                                                "kind": "definition"
                                            },
                                            {
                                                "text": "For which place and year?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "data",
                        "name": "Data",
                        "description": "Values.",
                        "rationale": "Values need sources.",
                        "layers": [
                            {
                                "id": "value",
                                "name": "Value",
                                "description": "Rate.",
                                "findings": [
                                    {
                                        "id": "value-finding",
                                        "name": "Value",
                                        "description": "Rate value.",
                                        "questions": [
                                            {
                                                "text": "What is the rate, from which official source?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "text": "How complete is death registration?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "uncertainty",
                                "name": "Uncertainty",
                                "description": "Estimates.",
                                "findings": [
                                    {
                                        "id": "uncertainty-finding",
                                        "name": "Uncertainty",
                                        "description": "Uncertainty.",
                                        "questions": [
                                            {
                                                "text": "Is it measured or modelled, and with what uncertainty?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "text": "Which model?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "comparison",
                        "name": "Comparison",
                        "description": "Like for like.",
                        "rationale": "Comparisons need care.",
                        "layers": [
                            {
                                "id": "standardisation",
                                "name": "Standardisation",
                                "description": "Age structure.",
                                "findings": [
                                    {
                                        "id": "standardisation-finding",
                                        "name": "Standardisation",
                                        "description": "Standardisation.",
                                        "questions": [
                                            {
                                                "text": "Are rates age-standardised for comparison?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "text": "To which standard population?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "trends",
                                "name": "Trends",
                                "description": "Over time.",
                                "findings": [
                                    {
                                        "id": "trends-finding",
                                        "name": "Trends",
                                        "description": "Trends.",
                                        "questions": [
                                            {
                                                "text": "How has the rate changed over time?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "text": "Did definitions change?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "communication",
                        "name": "Communication",
                        "description": "Sensitivity.",
                        "rationale": "Deaths are people.",
                        "layers": [
                            {
                                "id": "tone",
                                "name": "Tone",
                                "description": "Respect.",
                                "findings": [
                                    {
                                        "id": "tone-finding",
                                        "name": "Tone",
                                        "description": "Respectful tone.",
                                        "questions": [
                                            {
                                                "text": "Is the presentation respectful of those affected?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "text": "Is context given?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "fatality",
                                "name": "Case fatality",
                                "description": "Distinction.",
                                "findings": [
                                    {
                                        "id": "fatality-finding",
                                        "name": "Fatality",
                                        "description": "Case fatality distinction.",
                                        "questions": [
                                            {
                                                "text": "Is case fatality rate meant instead?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "text": "How do they differ?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Should specific rates be separate entries?",
                "How should sources be linked?",
                "How should standardisation be recorded?"
            ],
            "statistics": {
                "bundles": 4,
                "layers": 8,
                "findings": 8,
                "questions": 16
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "unit, quantity or measure",
            "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 mortality rate, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Let an agent handle mortality rates by definition, population, period, source and comparison, neutrally and with care for sensitive contexts.",
            "characteristics": {
                "substance": "abstract",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: COVID-19 mortality, monkeypox mortality, Adult mortality, maternal mortality ratio, Maternal Mortality Rate, catastrophic mortality, child mortality, excess mortality, early neonatal mortality rate, Child mortality in Ghana.",
                "10 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 64 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 mortality rate, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "an abstraction with no physical instance",
            "physicalCharacter": [
                "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"
            ],
            "howItIsRecognised": [
                "Nothing to see: a unit is a convention. What is seen is an instrument reading in it."
            ],
            "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": [
                        "COVID-19 mortality",
                        "monkeypox mortality",
                        "Adult mortality",
                        "maternal mortality ratio",
                        "Maternal Mortality Rate",
                        "catastrophic mortality",
                        "child mortality",
                        "excess mortality",
                        "early neonatal mortality rate",
                        "Child mortality in Ghana"
                    ]
                }
            ],
            "standing": "Described in 64 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 10 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 mortality rate from another, and a mortality rate 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 mortality rate, 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 mortality rate, 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 mortality rate 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 mortality rate, 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 mortality rate, 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 mortality rate 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 mortality rate 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 mortality rate, 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 mortality rate, 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 mortality rate 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 mortality rate from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a mortality rate, 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 mortality rate, 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 mortality rate 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 mortality rate 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 mortality rate between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a mortality rate, 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 mortality rate, 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 mortality rate 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 mortality rate, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a mortality rate 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 mortality rate, 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 mortality rate, 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 mortality rate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "definition-and-realisation",
                        "name": "Definition, dimension and realisation",
                        "description": "What mortality rate is defined as and how it is realised in practice.",
                        "rationale": "A unit is not the quantity it measures, and its definition has a history that older data still depends on.",
                        "layers": [
                            {
                                "id": "definition",
                                "name": "Definition and dimension",
                                "description": "The defining relation and the quantity it measures.",
                                "findings": [
                                    {
                                        "id": "definition-record",
                                        "name": "Definition, body and date",
                                        "description": "What defines it now, and what defined it before.",
                                        "questions": [
                                            {
                                                "id": "definition-record-q01",
                                                "text": "How is mortality rate defined, by which body, and since when?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "definition-record-q02",
                                                "text": "What was the previous definition, and what data still depends on it?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "conversion",
                                "name": "Conversion and compatibility",
                                "description": "Relations to other units, exact or approximate.",
                                "findings": [
                                    {
                                        "id": "conversion-record",
                                        "name": "Conversions and their exactness",
                                        "description": "Factors, and whether each is exact by definition.",
                                        "questions": [
                                            {
                                                "id": "conversion-record-q01",
                                                "text": "What conversions relate mortality rate to other units, and which are exact by definition?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "conversion-record-q02",
                                                "text": "Where does rounding a conversion change a decision, and how should that be recorded?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a mortality rate 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 mortality rate and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a mortality rate, 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 mortality rate, 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 mortality rate 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 mortality rate is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a mortality rate, 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 mortality rate, 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 mortality rate is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 4,
                "layers": 8,
                "findings": 10,
                "questions": 28
            }
        }
    }
}