Triple

T11233434
Position Surface form Disambiguated ID Type / Status
Subject Takanawa E265882 entity
Predicate servedBy P82 FINISHED
Object Keikyū Main Line (nearby via Shinagawa Station)
The Keikyū Main Line is a major private railway line in the Tokyo–Yokohama area that connects central Tokyo with Haneda Airport and the Miura Peninsula.
 E913032 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: Keikyū Main Line (nearby via Shinagawa Station) | Statement: [Takanawa, servedBy, Keikyū Main Line (nearby via Shinagawa Station)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Keikyū Main Line (nearby via Shinagawa Station)
Context triple: [Takanawa, servedBy, Keikyū Main Line (nearby via Shinagawa Station)]
  • A. Keihan Main Line (nearby stations)
    The Keihan Main Line (nearby stations) refers to the group of Keihan Electric Railway stations that provide convenient rail access to Kyoto’s Yoshida area, connecting it with central Kyoto and Osaka.
  • B. Keihan Main Line (near Kitahama)
    The Keihan Main Line near Kitahama is a major commuter railway corridor in central Osaka that connects the city with Kyoto and serves key business and commercial districts.
  • C. Keio Line at Meidaimae Station
    The Keio Line at Meidaimae Station is a major commuter rail line in Tokyo operated by Keio Corporation, providing key suburban–central city connectivity and an interchange with the Keio Inokashira Line.
  • D. Tokyo Metro Chiyoda Line (nearby via Kasumigaseki)
    Tokyo Metro Chiyoda Line is a major Tokyo subway line running through central districts and key hubs such as Kasumigaseki, connecting residential areas with important business and government centers.
  • E. Keio Inokashira Line at Kichijōji Station
    The Keio Inokashira Line at Kichijōji Station is a major suburban railway terminus in western Tokyo that connects the popular Kichijōji area with Shibuya and other key neighborhoods.
  • 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: Keikyū Main Line (nearby via Shinagawa Station)
Triple: [Takanawa, servedBy, Keikyū Main Line (nearby via Shinagawa Station)]
Generated description
The Keikyū Main Line is a major private railway line in the Tokyo–Yokohama area that connects central Tokyo with Haneda Airport and the Miura Peninsula.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Keikyū Main Line (nearby via Shinagawa Station)
Target entity description: The Keikyū Main Line is a major private railway line in the Tokyo–Yokohama area that connects central Tokyo with Haneda Airport and the Miura Peninsula.
  • A. Keihan Main Line (nearby stations)
    The Keihan Main Line (nearby stations) refers to the group of Keihan Electric Railway stations that provide convenient rail access to Kyoto’s Yoshida area, connecting it with central Kyoto and Osaka.
  • B. Keihan Main Line (near Kitahama)
    The Keihan Main Line near Kitahama is a major commuter railway corridor in central Osaka that connects the city with Kyoto and serves key business and commercial districts.
  • C. Keio Line at Meidaimae Station
    The Keio Line at Meidaimae Station is a major commuter rail line in Tokyo operated by Keio Corporation, providing key suburban–central city connectivity and an interchange with the Keio Inokashira Line.
  • D. Tokyo Metro Chiyoda Line (nearby via Kasumigaseki)
    Tokyo Metro Chiyoda Line is a major Tokyo subway line running through central districts and key hubs such as Kasumigaseki, connecting residential areas with important business and government centers.
  • E. Keio Inokashira Line at Kichijōji Station
    The Keio Inokashira Line at Kichijōji Station is a major suburban railway terminus in western Tokyo that connects the popular Kichijōji area with Shibuya and other key neighborhoods.
  • 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_69d6aac656d48190b275efaa7d6074ee completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e903b8ec81909f9c89776d35c650 completed April 9, 2026, 5:59 p.m.
NED1 Entity disambiguation (via context triple) batch_69e4ad56013481909f931505824e3b42 completed April 19, 2026, 10:24 a.m.
NEDg Description generation batch_69e4b12dd658819085c25d3edac2d66c completed April 19, 2026, 10:40 a.m.
NED2 Entity disambiguation (via description) batch_69e4b3d23b18819096f3a11aecc732bd completed April 19, 2026, 10:52 a.m.
Created at: April 8, 2026, 9:30 p.m.