Triple

T11684987
Position Surface form Disambiguated ID Type / Status
Subject Seibu Railway E277715 entity
Predicate operatorOf P179 FINISHED
Object Seibu Chichibu Line
The Seibu Chichibu Line is a railway line in Japan that connects suburban Saitama Prefecture with the Chichibu region, serving as an important commuter and tourist route.
 E1299575 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 Chichibu Line | Statement: [Seibu Railway, operatorOf, Seibu Chichibu Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Seibu Chichibu Line
Context triple: [Seibu Railway, operatorOf, Seibu Chichibu 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 Sayama Line
    The Seibu Sayama Line is a Japanese commuter railway line in Saitama Prefecture that connects suburban residential areas with major Seibu Railway routes.
  • D. Keio Dōbutsuen Line
    The Keio Dōbutsuen Line is a short branch railway line in Hino, Tokyo, operated by Keio Corporation, primarily serving visitors to the Tama Zoo and nearby attractions.
  • E. Tobu Isesaki Line
    The Tobu Isesaki Line is a major private railway line in the Greater Tokyo area operated by Tobu Railway, connecting central Tokyo with Saitama and Gunma Prefectures.
  • 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 Chichibu Line
Triple: [Seibu Railway, operatorOf, Seibu Chichibu Line]
Generated description
The Seibu Chichibu Line is a railway line in Japan that connects suburban Saitama Prefecture with the Chichibu region, serving as an important commuter and tourist route.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Seibu Chichibu Line
Target entity description: The Seibu Chichibu Line is a railway line in Japan that connects suburban Saitama Prefecture with the Chichibu region, serving as an important commuter and tourist route.
  • 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 Sayama Line
    The Seibu Sayama Line is a Japanese commuter railway line in Saitama Prefecture that connects suburban residential areas with major Seibu Railway routes.
  • D. Keio Dōbutsuen Line
    The Keio Dōbutsuen Line is a short branch railway line in Hino, Tokyo, operated by Keio Corporation, primarily serving visitors to the Tama Zoo and nearby attractions.
  • E. Tobu Isesaki Line
    The Tobu Isesaki Line is a major private railway line in the Greater Tokyo area operated by Tobu Railway, connecting central Tokyo with Saitama and Gunma Prefectures.
  • 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_6a033793575c8190be752006eedb383a completed May 12, 2026, 2:22 p.m.
NEDg Description generation batch_6a033895a86c8190958ce991e6d8ee53 completed May 12, 2026, 2:26 p.m.
NED2 Entity disambiguation (via description) batch_6a033cb498248190a3805cd356832cd0 completed May 12, 2026, 2:44 p.m.
Created at: April 8, 2026, 9:40 p.m.