Triple

T14733539
Position Surface form Disambiguated ID Type / Status
Subject JR East Nambu Line E346140 entity
Predicate connectsWith P37 FINISHED
Object Keio Line (via Bubaigawara)
The Keio Line (via Bubaigawara) is a major private railway route in the Tokyo area operated by Keio Corporation, providing commuter access between central Tokyo and its western suburbs with an interchange at Bubaigawara Station.
 E807436 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: Keio Line (via Bubaigawara) | Statement: [JR East Nambu Line, connectsWith, Keio Line (via Bubaigawara)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Keio Line (via Bubaigawara)
Context triple: [JR East Nambu Line, connectsWith, Keio Line (via Bubaigawara)]
  • A. Keio Keibajō Line
    The Keio Keibajō Line is a short branch railway line in Tokyo, Japan, operated by Keio Corporation to serve the Tokyo Racecourse area.
  • B. 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.
  • C. Keio Inokashira Line
    The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
  • 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. Keio Sagamihara Line
    The Keio Sagamihara Line is a commuter railway line in the Tokyo metropolitan area operated by Keio Corporation, connecting suburban communities with central Tokyo.
  • 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: Keio Line (via Bubaigawara)
Triple: [JR East Nambu Line, connectsWith, Keio Line (via Bubaigawara)]
Generated description
The Keio Line (via Bubaigawara) is a major private railway route in the Tokyo area operated by Keio Corporation, providing commuter access between central Tokyo and its western suburbs with an interchange at Bubaigawara Station.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Keio Line (via Bubaigawara)
Target entity description: The Keio Line (via Bubaigawara) is a major private railway route in the Tokyo area operated by Keio Corporation, providing commuter access between central Tokyo and its western suburbs with an interchange at Bubaigawara Station.
  • A. Keio Keibajō Line
    The Keio Keibajō Line is a short branch railway line in Tokyo, Japan, operated by Keio Corporation to serve the Tokyo Racecourse area.
  • B. 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.
  • C. Keio Inokashira Line
    The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
  • 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. Keio Sagamihara Line chosen
    The Keio Sagamihara Line is a commuter railway line in the Tokyo metropolitan area operated by Keio Corporation, connecting suburban communities with central Tokyo.
  • F. None of above.

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_69d822e5911c8190ba589f957dbd9ba7 completed April 9, 2026, 10:06 p.m.
NER Named-entity recognition batch_69dec72ea9348190817efcdaa973d7f7 completed April 14, 2026, 11:01 p.m.
NED1 Entity disambiguation (via context triple) batch_69fdfb8bcc188190901e3f692fd8fbf9 completed May 8, 2026, 3:04 p.m.
NEDg Description generation batch_69fdfe396bb48190ade10c757a3a7e5e completed May 8, 2026, 3:16 p.m.
NED2 Entity disambiguation (via description) batch_69fdfeb5d08081908ff0fdbc489fc985 completed May 8, 2026, 3:18 p.m.
Created at: April 10, 2026, 1:29 a.m.