Triple

T9602729
Position Surface form Disambiguated ID Type / Status
Subject Tokyo metropolitan area E231887 entity
Predicate hasMajorRailwayOperator P5620 FINISHED
Object East Japan Railway Company E149875 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: East Japan Railway Company | Statement: [Tokyo metropolitan area, hasMajorRailwayOperator, East Japan Railway Company]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: East Japan Railway Company
Context triple: [Tokyo metropolitan area, hasMajorRailwayOperator, East Japan Railway Company]
  • A. East Japan Railway Company chosen
    East Japan Railway Company is a major Japanese railway operator that runs an extensive network of commuter and high-speed train services across eastern Honshu, including the Tokyo metropolitan area.
  • B. West Japan Railway Company
    West Japan Railway Company is one of Japan’s major regional railway operators, managing extensive rail networks across western Honshu including the Kansai area.
  • C. Central Japan Railway Company
    Central Japan Railway Company is a major Japanese railway operator best known for running the Tokaido Shinkansen high-speed rail line connecting Tokyo, Nagoya, and Osaka.
  • D. Japan Railways Group
    Japan Railways Group is a major network of regional railway companies in Japan that emerged from the privatization of the former Japanese National Railways and operates much of the country’s passenger rail services, including high-speed Shinkansen lines.
  • E. Japanese National Railways
    Japanese National Railways was Japan’s former state-owned railway company that operated the country’s nationwide rail network until its privatization and breakup in 1987.
  • 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: hasMajorRailwayOperator
Context triple: [Tokyo metropolitan area, hasMajorRailwayOperator, East Japan Railway Company]
  • A. hasLocalRailOperator
    Indicates that a specified rail operator is responsible for providing local or regional rail services within a particular area or network.
  • B. hasRailOperatorNamedAfter
    Indicates that a rail operator is named after the specified entity.
  • C. formerRailOperator
    Indicates that an entity previously operated a rail service or railway system but no longer does so.
  • D. isNationalRailwaySystemOf
    Indicates that one entity functions as the official national railway system serving and operating within the territory of another entity.
  • E. railwayCompany chosen
    Indicates that one entity is a railway company that owns, operates, or manages railway services or infrastructure in relation to another entity.
  • F. None of above.

Provenance (4 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_69ca8484838c8190b2049199d22fef70 completed March 30, 2026, 2:11 p.m.
NER Named-entity recognition batch_69cd9a5af8f0819089408ed630afa812 completed April 1, 2026, 10:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69d1792ba9388190b98d4fb081510c30 completed April 4, 2026, 8:48 p.m.
PD Predicate disambiguation batch_69ccd5a6fd2481908efd131e207b8143 completed April 1, 2026, 8:21 a.m.
Created at: March 30, 2026, 8:08 p.m.