Triple

T6199484
Position Surface form Disambiguated ID Type / Status
Subject E235 series EMU E138591 entity
Predicate usedOnLine P15252 FINISHED
Object Joban Line (local services)
The Joban Line (local services) is a commuter rail service in the Greater Tokyo area of Japan, providing frequent local train connections along the Jōban Line corridor.
E575100 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: Joban Line (local services) | Statement: [E235 series EMU, usedOnLine, Joban Line (local services)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Joban Line (local services)
Context triple: [E235 series EMU, usedOnLine, Joban Line (local services)]
  • A. JR Saikyo Line
    The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
  • B. Keio Line bus services
    Keio Line bus services are a network of bus routes operated by the Keio Group in the Tokyo area, providing local and feeder connections to Keio railway stations and surrounding neighborhoods.
  • C. 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.
  • D. Sōbu Line Rapid
    The Sōbu Line Rapid is a Japanese railway service operated by JR East that provides fast commuter and intercity connections between central Tokyo and eastern Chiba Prefecture.
  • E. Yurikamome Line
    The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
  • 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: Joban Line (local services)
Triple: [E235 series EMU, usedOnLine, Joban Line (local services)]
Generated description
The Joban Line (local services) is a commuter rail service in the Greater Tokyo area of Japan, providing frequent local train connections along the Jōban Line corridor.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Joban Line (local services)
Target entity description: The Joban Line (local services) is a commuter rail service in the Greater Tokyo area of Japan, providing frequent local train connections along the Jōban Line corridor.
  • A. JR Saikyo Line
    The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
  • B. Keio Line bus services
    Keio Line bus services are a network of bus routes operated by the Keio Group in the Tokyo area, providing local and feeder connections to Keio railway stations and surrounding neighborhoods.
  • C. 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.
  • D. Sōbu Line Rapid
    The Sōbu Line Rapid is a Japanese railway service operated by JR East that provides fast commuter and intercity connections between central Tokyo and eastern Chiba Prefecture.
  • E. Yurikamome Line
    The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
  • 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_69c008acbea48190991c6b834bb45d65 completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c06253534c8190aafe70a6cf5a67ec completed March 22, 2026, 9:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69c16f302984819089c6a17dda476a4b completed March 23, 2026, 4:49 p.m.
NEDg Description generation batch_69c1c9a4bdd481909f836be4167befea completed March 23, 2026, 11:15 p.m.
NED2 Entity disambiguation (via description) batch_69c1ca257cb88190bee32a8ecb15c02b completed March 23, 2026, 11:17 p.m.
Created at: March 22, 2026, 4:20 p.m.