Triple

T6819189
Position Surface form Disambiguated ID Type / Status
Subject Teito Rapid Transit Authority E156852 entity
Predicate privatizedInto P73244 FINISHED
Object Tokyo Metro E34803 NE FINISHED

How this triple was built (3 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Tokyo Metro | Statement: [Teito Rapid Transit Authority, privatizedInto, Tokyo Metro]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tokyo Metro
Context triple: [Teito Rapid Transit Authority, privatizedInto, Tokyo Metro]
  • A. Tokyo Metro chosen
    Tokyo Metro is one of the two main rapid transit operators in Tokyo, running an extensive network of subway lines that serve the city’s central and metropolitan areas.
  • B. Toei Subway
    Toei Subway is one of Tokyo's two main subway networks, operated by the Tokyo Metropolitan Bureau of Transportation and serving numerous urban and suburban areas across the city.
  • C. Tokyo metropolitan rail network
    The Tokyo metropolitan rail network is an extensive, high-frequency urban and suburban railway system in Greater Tokyo, renowned for its punctuality, complexity, and integration of multiple private and public rail operators.
  • D. Tokyo Metro Hibiya Line
    The Tokyo Metro Hibiya Line is a major Tokyo subway line running through central districts such as Chiyoda, Minato, and Taito, providing key commuter and interline connections across the city.
  • E. Tokyo Metro Namboku Line
    The Tokyo Metro Namboku Line is a north–south subway line in Tokyo operated by Tokyo Metro, known for its deep underground stations and through-services to other railway lines.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: privatizedInto
Context triple: [Teito Rapid Transit Authority, privatizedInto, Tokyo Metro]
  • A. privatizedOn
    Indicates the date or point in time when an entity transitioned from public or state ownership/control to private ownership/control.
  • B. privatizationMethod
    Indicates the specific process or mechanism by which ownership or control of a public asset, service, or enterprise is transferred to private entities.
  • C. privatisationContext
    Indicates the context, conditions, or circumstances under which a privatisation process or action takes place.
  • D. wentPrivateIn
    Indicates that an entity transitioned from public to private status at or during the specified time or event.
  • E. isPrivateOrPublic
    Indicates whether something is designated as private or public in terms of its accessibility or visibility.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69c688298a288190af3f285d57f76bbe completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6d35781e88190a45d1386706d4422 completed March 27, 2026, 6:58 p.m.
NED1 Entity disambiguation (via context triple) batch_69c77528c3a481909085fabe8fc08d8a completed March 28, 2026, 6:28 a.m.
PD Predicate disambiguation batch_69c6d09bb4f881909bf20c188cb3e8e1 completed March 27, 2026, 6:46 p.m.
PDg Predicate description generation batch_69c6d1d5f1908190989efc8a2d18c965 completed March 27, 2026, 6:52 p.m.
Created at: March 27, 2026, 2:17 p.m.