accusative case
Enable an AI agent to recognise, analyse and annotate accusative case in a specified language and construction while preserving uncertainty about its identification, realisation and grammatical function.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an AI agent to recognise, analyse and annotate accusative case in a specified language and construction while preserving uncertainty about its identification, realisation and grammatical function.
The accusative case is a grammatical case characteristically marking the direct object of a transitive verb in nominative-accusative alignment, with its distribution and additional functions determined by the grammar of each language.
It can be Identify candidate accusative expressions using language-specific paradigms and constructional diagnostics.; Annotate case separately from surface form, grammatical relation and semantic role.; Compare competing accusative analyses against cited examples and explicit theoretical assumptions.; Detect unsupported inferences from word order, objecthood or an ambiguous ending.; Select or generate an accusative form when the governing construction and paradigm are established.; Defer an annotation and request discriminating evidence when case remains underdetermined..
Distinguishing features
Require language-specific case diagnostics: identifying an expression as a direct object does not by itself establish accusative case.
Distinguish a case category from its exponent: an ending or pronoun form counts as accusative evidence only within the relevant paradigm and distribution.
Separate accusative from absolutive by examining how candidate forms pattern with intransitive subjects, transitive subjects and transitive objects.
Separate an accusative annotation on a constituent from a claim that the language has nominative-accusative alignment throughout its grammar.
Distinguish grammatical accusative from semantic patienthood by checking case behaviour independently of the participant's meaning.
Scope
+ Language-specific definitions and diagnostics for identifying accusative case
+ Accusative assignment to nominal expressions in specified constructions
+ Overt, zero and syncretic realisations of accusative case
+ Accusative relationships to grammatical relations, semantic roles and alignment
+ Competing analyses and evidence-sensitive annotation decisions
- The full inventory and organisation of grammatical cases
- Direct objects and other grammatical relations independently of case
- Nominative-accusative alignment as a complete grammatical system
- Complete nominal declension paradigms beyond contrasts needed to identify accusative
- Accusative-and-infinitive constructions as complete construction models
- General theories of syntax, thematic roles or language acquisition
Characteristics
- Language and variety
- Named language, dialect, historical stage and register Case diagnostics and distributions must be evaluated within a specified linguistic system.
- Analytical interpretation
- Descriptive case category; morphological case; abstract syntactic Case; comparative category; disputed These interpretations can support different claims about the same expression.
- Accusative bearer
- Linked token, nominal constituent or paradigm position, with the analysis's assignment domain The constituent assigned case and the elements displaying it may differ.
- Realisation
- Affixal; stem alternation; suppletive; clitic or particle under the adopted analysis; zero; distributed; unresolved Recognition cannot depend on finding a dedicated accusative suffix.
- Formal distinctness
- Distinct accusative form; syncretic with named cases; no overt contrast; unresolved A shared surface form can leave case identification dependent on other evidence.
- Licensing environment
- Linked predicate, adposition or construction, including relevant conditions Accusative attribution requires an account of where it is licensed.
- Grammatical and semantic function
- Separately identified grammatical relation and semantic role in a cited example Keeping the two independent prevents objecthood and patienthood from becoming circular case tests.
- Analysis status
- Proposed; supported within a named analysis; disputed; underdetermined; rejected An agent needs to distinguish an established annotation from a hypothesis requiring review.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 18 findings · 30 questions.
Category and analysis Establish what accusative means in the linguistic description being used.
Recognition depends on whether accusative denotes an observable case distinction, a theoretical assignment or a cross-language comparison.
Definition and tradition
Locate the category within a language description and analytical tradition.
Accusative definition
Record the adopted definition, its author or descriptive tradition, and its diagnostics without treating it as universally settled.
- How does the cited grammar or analysis define accusative in this language and variety? definition
- Who adopts this definition, and which competing analysis changes what counts as accusative? provenance
Levels of case analysis
Separate morphological evidence, syntactic assignment and comparative terminology.
Case analysis level
Specify the level at which accusative is asserted and the evidence appropriate to that assertion.
- Does accusative here label a morphological paradigm value, abstract syntactic Case or a comparative category? definition
- If no overt case contrast exists, what independently supports the accusative analysis? boundary
Forms and exponents Describe how accusative is realised and how much a surface form can establish.
Accusative identification must accommodate distinct forms, shared forms and case expression across a constituent.
Paradigmatic contrasts
Compare candidate accusative forms with relevant alternatives in the same paradigm.
Accusative form evidence
Record contrasts while controlling for lexical item, number, gender or other relevant inflectional conditions.
- Which attested paradigm contrasts distinguish accusative from nominative and other candidate cases? measurement
- Where the form is syncretic or unmarked, which contextual diagnostics can resolve its case? boundary
Constituent realisation
Locate accusative expression within the nominal constituent and distinguish case assignment from concord.
Bearer and marking sites
Identify the assigned constituent and the nouns, pronouns, modifiers or other elements that express its case.
- Which constituent receives accusative, and which of its elements overtly express that value? definition
- What evidence distinguishes case concord from independent case assignment or a separate adpositional construction? boundary
Licensing and alternations Capture the constructions that license accusative and the conditions under which another case appears.
An agent must know when accusative is permitted, required or excluded before analysing or generating an expression.
Governors and constructions
Associate accusative with attested predicates, adpositions and constructional environments.
Accusative licensing
Record the licensing account and distinguish its observed distribution from theoretical explanations.
- Which predicates, adpositions or constructions license accusative in the attested examples? provenance
- What evidence supports treating this accusative as structurally assigned, lexically governed or construction-specific? boundary
Conditioned case choice
Examine accusative alternatives under changes in nominal properties or clause structure.
Accusative alternation conditions
Record demonstrated effects of factors such as animacy, definiteness, negation, aspect or voice without presuming their relevance in every language.
- Which controlled examples establish when accusative alternates with another case or with absence of overt marking? measurement
- Does the alternation change case assignment, only its overt expression, the construction's meaning or more than one of these? boundary
- Which established conditions must an agent check before choosing an accusative form? action
Functions and alignment Relate accusative to grammatical functions while maintaining the distinctions needed for cross-language comparison.
Direct-object associations are useful evidence but cannot substitute for identifying the case category.
Argument patterning
Compare case behaviour across intransitive subjects, transitive subjects and transitive objects.
Alignment diagnostics
Record the relevant argument contrasts and limit alignment conclusions to the domains actually examined.
- How do the candidate accusative forms contrast with forms used for intransitive and transitive subjects? measurement
- Do pronouns, nouns or particular constructions show different patterns that restrict the alignment claim? boundary
Function and role range
Investigate the grammatical relations and meanings associated with accusative in the target language.
Accusative beyond objecthood
Test both accusative uses outside direct objects and direct objects outside accusative, keeping semantic roles independently recorded.
- Which attested accusative expressions function as something other than direct objects, if any? boundary
- Which direct objects receive another case, and which semantic roles occur among independently identified accusative expressions? measurement
Evidence and annotation Turn accusative analyses into traceable decisions that an agent can review and revise.
A usable model must distinguish evidence for accusative from inherited labels and specify how unresolved cases affect action.
Attestation and disagreement
Connect analyses to examples, source descriptions and explicit counterevidence.
Traceable accusative claim
Preserve each example's linguistic context, source and analysis, including disagreements between descriptions.
- Which readable source or documented elicitation supports the accusative label for this expression? provenance
- Which counterexample or alternative analysis would weaken that identification? boundary
Annotation and revision
Define justified annotation, abstention and revision for accusative candidates.
Accusative decision policy
Specify sufficient diagnostics, preserve unresolved alternatives and constrain form generation to supported environments.
- What combination of paradigm and constructional evidence is sufficient to annotate accusative under the selected analysis? action
- When evidence is insufficient, which alternatives should remain open and what additional example would discriminate between them? action
- When a source analysis changes, which annotations and generated forms require review? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- This describes the linguistic sense; the recorded domain code alone does not establish a narrower interpretation.
- The listed kinds are traditional uses or constructions, not a universal set of separate accusative case values.
- Morphological case, syntactic case and theory-specific abstract Case should be distinguished; their relationship and analyses vary across linguistic frameworks.
- Which of these check these first hold for the sense of accusative case this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Direct-object accusative
- Accusative of duration
- Accusative of spatial extent
- Accusative of respect
- Accusative subject in accusative-and-infinitive constructions
- Which of these kinds and varieties hold for the sense of accusative case this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- Leipzig Glossing Rules - ACC - Conventional abbreviation for accusative in interlinear grammatical glosses.
- Universal Dependencies morphological features - Case=Acc - Annotation for accusative case; grammatical case and syntactic dependency relation are recorded separately.
- Which of these identifiers and schemes hold for the sense of accusative case this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- Leipzig Glossing Rules, developed by the Max Planck Institute for Evolutionary Anthropology's Department of Linguistics and the University of Leipzig's Department of Linguistics, provide conventions for glossing case.
- Universal Dependencies project guidelines define the Acc value of the Case feature for linguistic annotation.
- Which of these standards and regulation hold for the sense of accusative case this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Describing nominal and pronominal inflection in language grammars.
- Teaching the forms selected by verbs and prepositions in particular languages.
- Annotating grammatical case in corpora and treebanks.
- Comparing grammatical alignment and patterns of object marking across languages.
- Developing morphological analysers and syntactic parsers.
- Which of these real-world use hold for the sense of accusative case this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Equating accusative case with direct-object function: some accusatives are not direct objects, and some direct objects receive other cases or no overt case marking.
- Treating accusative as a semantic role such as patient, although case marking and semantic roles do not correspond one to one.
- Assuming every accusative has a distinctive ending; syncretism can make accusative forms identical to other case forms.
- Transferring one language's rules for accusative assignment to another language.
- Confusing a language's nominative-accusative alignment with the presence of an overt accusative case form.
- Which of these failure modes and hazards hold for the sense of accusative case this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- In German, accusative appears on articles, pronouns and some other nominal forms, and is selected by particular verbs and prepositions.
- In Russian, accusative forms interact with animacy in parts of the nominal paradigm, producing forms shared with nominative or genitive.
- In Turkish, accusative marking of direct objects is associated with specificity; some direct objects occur without an accusative suffix.
- Which of these regional variation hold for the sense of accusative case this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Grammatical case - The broader category of grammatical distinctions to which accusative belongs.
- Direct object - A syntactic function rather than a case value; its case marking depends on the language and construction.
- Nominative case - Characteristically marks subjects in nominative-accusative systems, whereas accusative characteristically marks transitive direct objects.
- Absolutive case - In ergative-absolutive alignment, groups intransitive subjects with transitive objects, whereas accusative characteristically distinguishes transitive objects from both kinds of subject.
- Dative case - Characteristically associated with recipients and indirect objects, though actual case assignment is language-specific.
- Objective case - Can name a broader object-form category, such as English me or him, whose distribution includes functions served by several distinct cases in other languages.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of accusative case this model covers, and on what evidence? provenance
What the second pass must settle
- Which reference descriptions and theoretical traditions should anchor the model's treatment of accusative, and where do their definitions disagree?
- What evidence should qualify an expression as abstract accusative when its language or paradigm supplies no overt accusative contrast?
- How should language-specific accusative categories be compared without assuming that their distributions or diagnostics are equivalent?
- Which documented alternations require distinguishing case assignment from differential expression of an unchanged case value?
- What annotation policy best preserves competing analyses when syncretism or incomplete constructional evidence prevents a unique accusative decision?