Triple

T11233436
Position Surface form Disambiguated ID Type / Status
Subject Takanawa E265882 entity
Predicate servedBy P82 FINISHED
Object JR Keihin-Tōhoku Line (nearby via Shinagawa Station)
The JR Keihin-Tōhoku Line is a major commuter rail line in the Greater Tokyo area that runs north–south through key hubs including Shinagawa Station, providing frequent local and rapid services.
E913033 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: JR Keihin-Tōhoku Line (nearby via Shinagawa Station) | Statement: [Takanawa, servedBy, JR Keihin-Tōhoku Line (nearby via Shinagawa Station)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: JR Keihin-Tōhoku Line (nearby via Shinagawa Station)
Context triple: [Takanawa, servedBy, JR Keihin-Tōhoku 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. JR Joban Line (via Kita-Senju)
    The JR Joban Line (via Kita-Senju) is a major commuter rail corridor in the Tokyo metropolitan area that provides through-services between central Tokyo and the Joban region of Ibaraki and beyond.
  • C. 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.
  • D. JR Saikyo Line (at Ikebukuro Station)
    The JR Saikyo Line at Ikebukuro Station is a major JR East commuter rail line in Tokyo that provides rapid north–south access through the city and connects with multiple private and subway lines.
  • E. JR Lines at Kanda
    JR Lines at Kanda refers to the Japan Railways train services that stop at Kanda Station in Tokyo, a key commuter hub connecting multiple JR lines with the Tokyo Metro network.
  • 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: JR Keihin-Tōhoku Line (nearby via Shinagawa Station)
Triple: [Takanawa, servedBy, JR Keihin-Tōhoku Line (nearby via Shinagawa Station)]
Generated description
The JR Keihin-Tōhoku Line is a major commuter rail line in the Greater Tokyo area that runs north–south through key hubs including Shinagawa Station, providing frequent local and rapid services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: JR Keihin-Tōhoku Line (nearby via Shinagawa Station)
Target entity description: The JR Keihin-Tōhoku Line is a major commuter rail line in the Greater Tokyo area that runs north–south through key hubs including Shinagawa Station, providing frequent local and rapid services.
  • 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. JR Joban Line (via Kita-Senju)
    The JR Joban Line (via Kita-Senju) is a major commuter rail corridor in the Tokyo metropolitan area that provides through-services between central Tokyo and the Joban region of Ibaraki and beyond.
  • C. 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.
  • D. JR Saikyo Line (at Ikebukuro Station)
    The JR Saikyo Line at Ikebukuro Station is a major JR East commuter rail line in Tokyo that provides rapid north–south access through the city and connects with multiple private and subway lines.
  • E. JR Lines at Kanda
    JR Lines at Kanda refers to the Japan Railways train services that stop at Kanda Station in Tokyo, a key commuter hub connecting multiple JR lines with the Tokyo Metro network.
  • 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.