Triple

T11684990
Position Surface form Disambiguated ID Type / Status
Subject Seibu Railway E277715 entity
Predicate operatorOf P179 FINISHED
Object Seibu Haijima Line
The Seibu Haijima Line is a commuter railway line in the western Tokyo area of Japan, forming part of the Seibu Railway network and connecting suburban communities with major transit hubs.
 E1304168 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: Seibu Haijima Line | Statement: [Seibu Railway, operatorOf, Seibu Haijima Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Seibu Haijima Line
Context triple: [Seibu Railway, operatorOf, Seibu Haijima Line]
  • A. Seibu Tamako Line
    The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
  • B. Seibu Kokubunji Line
    The Seibu Kokubunji Line is a commuter railway line in western Tokyo operated by Seibu Railway, connecting residential suburbs with major transit hubs.
  • C. Seibu Toshima Line
    The Seibu Toshima Line is a short commuter railway line in Tokyo, Japan, operated by Seibu Railway and connecting Nerima and Toshimaen in the city’s northwest.
  • D. Seishin-Yamate Line
    The Seishin-Yamate Line is a major Kobe Municipal Subway line in Kobe, Japan, connecting central Kobe with its northern and western suburban areas.
  • E. Tōkyū Ōimachi Line
    The Tōkyū Ōimachi Line is a major commuter railway line in Tokyo operated by Tokyu Corporation, connecting central Tokyo areas such as Ōimachi and Futako-Tamagawa with surrounding residential districts.
  • 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: Seibu Haijima Line
Triple: [Seibu Railway, operatorOf, Seibu Haijima Line]
Generated description
The Seibu Haijima Line is a commuter railway line in the western Tokyo area of Japan, forming part of the Seibu Railway network and connecting suburban communities with major transit hubs.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Seibu Haijima Line
Target entity description: The Seibu Haijima Line is a commuter railway line in the western Tokyo area of Japan, forming part of the Seibu Railway network and connecting suburban communities with major transit hubs.
  • A. Seibu Tamako Line
    The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
  • B. Seibu Kokubunji Line
    The Seibu Kokubunji Line is a commuter railway line in western Tokyo operated by Seibu Railway, connecting residential suburbs with major transit hubs.
  • C. Seibu Toshima Line
    The Seibu Toshima Line is a short commuter railway line in Tokyo, Japan, operated by Seibu Railway and connecting Nerima and Toshimaen in the city’s northwest.
  • D. Seishin-Yamate Line
    The Seishin-Yamate Line is a major Kobe Municipal Subway line in Kobe, Japan, connecting central Kobe with its northern and western suburban areas.
  • E. Tōkyū Ōimachi Line
    The Tōkyū Ōimachi Line is a major commuter railway line in Tokyo operated by Tokyu Corporation, connecting central Tokyo areas such as Ōimachi and Futako-Tamagawa with surrounding residential districts.
  • 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_69d6aafe02d881909900d54ad7d4af84 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d8a463f6448190a4c8e1651a2bd905 completed April 10, 2026, 7:19 a.m.
NED1 Entity disambiguation (via context triple) batch_6a03564e0d9c8190948d72ec5bca046c completed May 12, 2026, 4:33 p.m.
NEDg Description generation batch_6a03598fb63c81908e50b0ff63fe2e95 completed May 12, 2026, 4:47 p.m.
NED2 Entity disambiguation (via description) batch_6a0359e4cf988190a0f0c496d3a84c53 completed May 12, 2026, 4:48 p.m.
Created at: April 8, 2026, 9:40 p.m.