Triple

T5617998
Position Surface form Disambiguated ID Type / Status
Subject Osaki Station E147524 entity
Predicate servedByOperator P5884 FINISHED
Object Tokyo Waterfront Area Rapid Transit (via Rinkai Line)
Tokyo Waterfront Area Rapid Transit (via the Rinkai Line) is a Japanese railway operator that runs the Rinkai Line, a key commuter route linking central Tokyo with its waterfront districts.
E531093 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: Tokyo Waterfront Area Rapid Transit (via Rinkai Line) | Statement: [Osaki Station, servedByOperator, Tokyo Waterfront Area Rapid Transit (via Rinkai Line)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tokyo Waterfront Area Rapid Transit (via Rinkai Line)
Context triple: [Osaki Station, servedByOperator, Tokyo Waterfront Area Rapid Transit (via Rinkai Line)]
  • A. Toei Mita Line
    The Toei Mita Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through the city and connecting central Tokyo with its northern suburbs.
  • B. Tokyo Metro Namboku Line
    The Tokyo Metro Namboku Line is a north–south subway line in Tokyo operated by Tokyo Metro, known for its deep underground stations and through-services to other railway lines.
  • C. Tokyo Metro Marunouchi Line
    The Tokyo Metro Marunouchi Line is one of Tokyo’s main subway lines, running in a loop-like route through central districts and connecting major hubs such as Shinjuku, Tokyo, and Ikebukuro.
  • D. Tokyu Meguro Line
    The Tokyu Meguro Line is a commuter railway line in Tokyo and Kanagawa operated by Tokyu Corporation, linking central Tokyo with its southwestern suburbs and offering through services onto various subway and other private railway lines.
  • E. Tokyu Den-en-toshi Line
    Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
  • 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: Tokyo Waterfront Area Rapid Transit (via Rinkai Line)
Triple: [Osaki Station, servedByOperator, Tokyo Waterfront Area Rapid Transit (via Rinkai Line)]
Generated description
Tokyo Waterfront Area Rapid Transit (via the Rinkai Line) is a Japanese railway operator that runs the Rinkai Line, a key commuter route linking central Tokyo with its waterfront districts.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tokyo Waterfront Area Rapid Transit (via Rinkai Line)
Target entity description: Tokyo Waterfront Area Rapid Transit (via the Rinkai Line) is a Japanese railway operator that runs the Rinkai Line, a key commuter route linking central Tokyo with its waterfront districts.
  • A. Toei Mita Line
    The Toei Mita Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through the city and connecting central Tokyo with its northern suburbs.
  • B. Tokyo Metro Namboku Line
    The Tokyo Metro Namboku Line is a north–south subway line in Tokyo operated by Tokyo Metro, known for its deep underground stations and through-services to other railway lines.
  • C. Tokyo Metro Marunouchi Line
    The Tokyo Metro Marunouchi Line is one of Tokyo’s main subway lines, running in a loop-like route through central districts and connecting major hubs such as Shinjuku, Tokyo, and Ikebukuro.
  • D. Tokyu Meguro Line
    The Tokyu Meguro Line is a commuter railway line in Tokyo and Kanagawa operated by Tokyu Corporation, linking central Tokyo with its southwestern suburbs and offering through services onto various subway and other private railway lines.
  • E. Tokyu Den-en-toshi Line
    Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
  • 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_69c00905d4588190bd967842bbcf2219 completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c021dc04c081909f36e40394e7c955 completed March 22, 2026, 5:07 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0287d9d7081909a1b2510565b55fc completed March 22, 2026, 5:35 p.m.
NEDg Description generation batch_69c03894b9388190bd534ad107722b83 completed March 22, 2026, 6:44 p.m.
NED2 Entity disambiguation (via description) batch_69c0393144248190a97d1f82b81cc868 completed March 22, 2026, 6:47 p.m.
Created at: March 22, 2026, 3:40 p.m.