Triple

T1195530
Position Surface form Disambiguated ID Type / Status
Subject Keio Inokashira Line E25658 entity
Predicate connectsTo P845 FINISHED
Object 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.
E159564 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 at Meidaimae Station | Statement: [Keio Inokashira Line, connectsTo, Keio Line at Meidaimae Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Keio Line at Meidaimae Station
Context triple: [Keio Inokashira Line, connectsTo, Keio Line at Meidaimae Station]
  • A. JR Chūō Line at Kichijōji Station
    The JR Chūō Line at Kichijōji Station is a major commuter rail line in western Tokyo that provides rapid access between the popular Kichijōji area and central Tokyo hubs such as Shinjuku and Tokyo Station.
  • B. 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.
  • C. Tokyo Metro Tozai Line at Nihonbashi
    Tokyo Metro Tozai Line at Nihonbashi is a key underground railway line stop in central Tokyo that serves the Nihonbashi business district and connects with multiple other subway lines for convenient citywide access.
  • D. Toei Asakusa Line at Nihonbashi
    The Toei Asakusa Line at Nihonbashi is a station on Tokyo’s Toei Asakusa subway line located in the Nihonbashi district, providing convenient transfers to other central Tokyo lines and access to a major commercial and business area.
  • E. Shuri Station
    Shuri Station is a railway station in Naha, Okinawa, serving as a key stop on the Okinawa Urban Monorail (Yui Rail) near the historic Shuri Castle area.
  • 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 at Meidaimae Station
Triple: [Keio Inokashira Line, connectsTo, Keio Line at Meidaimae Station]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Keio Line at Meidaimae Station
Target entity description: 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.
  • A. JR Chūō Line at Kichijōji Station
    The JR Chūō Line at Kichijōji Station is a major commuter rail line in western Tokyo that provides rapid access between the popular Kichijōji area and central Tokyo hubs such as Shinjuku and Tokyo Station.
  • B. 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.
  • C. Tokyo Metro Tozai Line at Nihonbashi
    Tokyo Metro Tozai Line at Nihonbashi is a key underground railway line stop in central Tokyo that serves the Nihonbashi business district and connects with multiple other subway lines for convenient citywide access.
  • D. Toei Asakusa Line at Nihonbashi
    The Toei Asakusa Line at Nihonbashi is a station on Tokyo’s Toei Asakusa subway line located in the Nihonbashi district, providing convenient transfers to other central Tokyo lines and access to a major commercial and business area.
  • E. Shuri Station
    Shuri Station is a railway station in Naha, Okinawa, serving as a key stop on the Okinawa Urban Monorail (Yui Rail) near the historic Shuri Castle area.
  • 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_69a49429f5ec8190a6a205eb0ae81e5e completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4bd7a756c819085d695acfffeaceb completed March 1, 2026, 10:28 p.m.
NED1 Entity disambiguation (via context triple) batch_69acde099eb88190ac354f3b4efb0965 completed March 8, 2026, 2:25 a.m.
NEDg Description generation batch_69acde7990b4819082a1bcb50215d4f1 completed March 8, 2026, 2:27 a.m.
NED2 Entity disambiguation (via description) batch_69acdee2d71481908a735d5685693ca8 completed March 8, 2026, 2:28 a.m.
Created at: March 1, 2026, 7:46 p.m.