Triple

T11676281
Position Surface form Disambiguated ID Type / Status
Subject Keikyu Corporation E277499 entity
Predicate operates P24 FINISHED
Object Keikyu Daishi Line — 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: Keikyu Daishi Line | Statement: [Keikyu Corporation, operates, Keikyu Daishi Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Keikyu Daishi Line
Context triple: [Keikyu Corporation, operates, Keikyu Daishi Line]
  • A. Keikyū Zushi Line
    The Keikyū Zushi Line is a commuter railway line in the Greater Tokyo area of Japan operated by Keikyu, connecting urban Yokohama with the coastal Zushi region.
  • B. Keikyū Kurihama Line
    The Keikyū Kurihama Line is a commuter railway line in Kanagawa Prefecture, Japan, operated by Keikyu, linking southern Yokosuka with the Miura Peninsula and providing access toward central Tokyo.
  • C. Fukutoshin Line
    The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
  • D. Sennichimae Line
    The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
  • E. Karasuma Line
    The Karasuma Line is a major Kyoto Municipal Subway line running north–south through Kyoto, connecting key districts and transportation hubs including Kyoto Station.
  • 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: Keikyu Daishi Line
Target entity description: The Keikyu Daishi Line is a short commuter railway line in Kawasaki, Kanagawa Prefecture, Japan, providing local transit service as part of the Keikyu network.
  • A. Keikyū Zushi Line
    The Keikyū Zushi Line is a commuter railway line in the Greater Tokyo area of Japan operated by Keikyu, connecting urban Yokohama with the coastal Zushi region.
  • B. Keikyū Kurihama Line
    The Keikyū Kurihama Line is a commuter railway line in Kanagawa Prefecture, Japan, operated by Keikyu, linking southern Yokosuka with the Miura Peninsula and providing access toward central Tokyo.
  • C. Fukutoshin Line
    The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
  • D. Sennichimae Line
    The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
  • E. Karasuma Line
    The Karasuma Line is a major Kyoto Municipal Subway line running north–south through Kyoto, connecting key districts and transportation hubs including Kyoto Station.
  • 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_69d6aafd0a448190b44da30af8c6c519 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d8a44504c48190b519765a83ff9c5e completed April 10, 2026, 7:18 a.m.
Created at: April 8, 2026, 9:40 p.m.