Triple

T23453383
Position Surface form Disambiguated ID Type / Status
Subject Nagoya Municipal Subway Meijō Line E567847 entity
Predicate rollingStock P1305 FINISHED
Object Nagoya Municipal Subway 2000 series — NE NERFINISHED

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: Nagoya Municipal Subway 2000 series | Statement: [Nagoya Municipal Subway Meijō Line, rollingStock, Nagoya Municipal Subway 2000 series]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Nagoya Municipal Subway 2000 series
Context triple: [Nagoya Municipal Subway Meijō Line, rollingStock, Nagoya Municipal Subway 2000 series]
  • A. Nagoya 5000 series trains
    The Nagoya 5000 series trains are Japanese-built electric multiple units originally used in Nagoya that were later exported and adapted for service on Buenos Aires’ Line D of the underground.
  • B. Tokyo Metro 2000 series
    The Tokyo Metro 2000 series is a modern electric multiple unit train used on Tokyo’s subway network, featuring energy-efficient systems and updated passenger amenities.
  • C. Tokyo Metro 16000 series
    The Tokyo Metro 16000 series is a modern electric multiple unit train type operated by Tokyo Metro, primarily used for commuter services on the Chiyoda Line.
  • D. Tokyo Metro 9000 series EMU
    The Tokyo Metro 9000 series EMU is a Japanese electric multiple unit train type used for commuter services on Tokyo Metro’s Namboku Line and through-services onto lines such as the Tokyu Meguro Line.
  • E. Tokyo Metro 18000 series
    The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Nagoya Municipal Subway 2000 series
Target entity description: The Nagoya Municipal Subway 2000 series is a type of electric multiple unit train used on Nagoya’s subway system, known for serving the circular Meijō Line with modern, efficient urban transit.
  • A. Nagoya 5000 series trains
    The Nagoya 5000 series trains are Japanese-built electric multiple units originally used in Nagoya that were later exported and adapted for service on Buenos Aires’ Line D of the underground.
  • B. Tokyo Metro 2000 series
    The Tokyo Metro 2000 series is a modern electric multiple unit train used on Tokyo’s subway network, featuring energy-efficient systems and updated passenger amenities.
  • C. Tokyo Metro 16000 series
    The Tokyo Metro 16000 series is a modern electric multiple unit train type operated by Tokyo Metro, primarily used for commuter services on the Chiyoda Line.
  • D. Tokyo Metro 9000 series EMU
    The Tokyo Metro 9000 series EMU is a Japanese electric multiple unit train type used for commuter services on Tokyo Metro’s Namboku Line and through-services onto lines such as the Tokyu Meguro Line.
  • E. Tokyo Metro 18000 series
    The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
  • F. None of above. chosen

Provenance (2 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_69e2458b4c888190b1d7998f9862a558 completed April 17, 2026, 2:36 p.m.
NER Named-entity recognition batch_69f1a694f19081909117bc9b10ca8a83 completed April 29, 2026, 6:35 a.m.
Created at: April 17, 2026, 5:52 p.m.