Triple

T7038864
Position Surface form Disambiguated ID Type / Status
Subject Chikatetsu Narimasu Station E163455 entity
Predicate servedByLine P1293 FINISHED
Object Tokyo Metro Yūrakuchō Line E261298 NE FINISHED

How this triple was built (2 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 Yūrakuchō Line | Statement: [Chikatetsu Narimasu Station, servedByLine, Tokyo Metro Yūrakuchō Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tokyo Metro Yūrakuchō Line
Context triple: [Chikatetsu Narimasu Station, servedByLine, Tokyo Metro Yūrakuchō Line]
  • A. Tokyo Metro Yurakuchō Line chosen
    The Tokyo Metro Yurakuchō Line is a major Tokyo subway line running east–west across the city, connecting central business districts with residential areas and key transit hubs.
  • B. Tokyo Metro Marunouchi Line
    The Tokyo Metro Marunouchi Line is one of Tokyo’s main subway lines, running in a loop-like route through central districts and connecting major hubs such as Shinjuku, Tokyo, and Ikebukuro.
  • C. Tokyo Metro Fukutoshin Line
    The Tokyo Metro Fukutoshin Line is a major Tokyo subway line running north–south through central and suburban areas, connecting key hubs such as Shibuya with other important districts.
  • D. Tokyo Metro Chiyoda Line
    The Tokyo Metro Chiyoda Line is a major Tokyo subway line running north–south through central districts and into suburban areas, connecting key hubs such as Omotesando, Otemachi, and Yoyogi-Uehara.
  • E. Tokyo Metro Hanzomon Line
    The Tokyo Metro Hanzomon Line is a major Tokyo subway line that runs east–west across the city center, linking Shibuya with key business and residential districts and offering through services onto private railway lines.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69c6885e7c1c8190be32a8f79ab4e0cf completed March 27, 2026, 1:38 p.m.
NER Named-entity recognition batch_69c6e223077c819097992089fa83c563 completed March 27, 2026, 8:01 p.m.
NED1 Entity disambiguation (via context triple) batch_69f43ee693048190a8c7ecdf8724d3ec completed May 1, 2026, 5:49 a.m.
Created at: March 27, 2026, 2:36 p.m.