Triple

T5553152
Position Surface form Disambiguated ID Type / Status
Subject Ikebukuro Station E145574 entity
Predicate servedByLine P1293 FINISHED
Object Tokyo Metro Marunouchi Line E264046 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 Marunouchi Line | Statement: [Ikebukuro Station, servedByLine, Tokyo Metro Marunouchi Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tokyo Metro Marunouchi Line
Context triple: [Ikebukuro Station, servedByLine, Tokyo Metro Marunouchi Line]
  • A. Tokyo Metro Marunouchi Line chosen
    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.
  • B. Tokyo Metro Yurakuchō Line
    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.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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_69c008fb879c81909f5bfa56fadc1d46 completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c01ff9c9c48190b5e587d58c6515d8 completed March 22, 2026, 4:59 p.m.
NED1 Entity disambiguation (via context triple) batch_69c902a459f481908dbba16de611b85a completed March 29, 2026, 10:44 a.m.
Created at: March 22, 2026, 3:35 p.m.