Triple

T11676281
Position Surface form Disambiguated ID Type / Status
Subject Keikyu Corporation E277499 entity
Predicate operates P24 FINISHED
Object Keikyu Daishi Line
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.
E1291542 NE FINISHED

How this triple was built (4 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.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Keikyu Daishi Line
Triple: [Keikyu Corporation, operates, Keikyu Daishi Line]
Generated 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.
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 (5 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.
NED1 Entity disambiguation (via context triple) batch_6a030c468b508190a1d683ff354c235c completed May 12, 2026, 11:17 a.m.
NEDg Description generation batch_6a030ce6e0248190854acf6ad772cb08 completed May 12, 2026, 11:20 a.m.
NED2 Entity disambiguation (via description) batch_6a030d4d117c8190a115b86df7990087 completed May 12, 2026, 11:21 a.m.
Created at: April 8, 2026, 9:40 p.m.