Triple

T11233497
Position Surface form Disambiguated ID Type / Status
Subject Roppongi Hills E265883 entity
Predicate nearbyStation P4625 FINISHED
Object Roppongi Station on Tokyo Metro Hibiya Line
Roppongi Station on the Tokyo Metro Hibiya Line is a major underground railway station in Tokyo’s Roppongi district, providing access to its nightlife, business centers, and attractions such as Roppongi Hills.
E913041 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: Roppongi Station on Tokyo Metro Hibiya Line | Statement: [Roppongi Hills, nearbyStation, Roppongi Station on Tokyo Metro Hibiya Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Roppongi Station on Tokyo Metro Hibiya Line
Context triple: [Roppongi Hills, nearbyStation, Roppongi Station on Tokyo Metro Hibiya Line]
  • A. Mejiro Station on Yamanote Line
    Mejiro Station on the Yamanote Line is a small, relatively quiet JR East railway station in Tokyo’s Toshima ward, situated between the major hubs of Ikebukuro and Takadanobaba.
  • B. Tokyo Metro Fukutoshin Line (at Ikebukuro Station)
    The Tokyo Metro Fukutoshin Line at Ikebukuro Station is a major Tokyo subway line and hub section that provides through-services to multiple private railways, facilitating heavy commuter traffic across central and suburban areas.
  • C. Tokyo Metro Yurakucho Line (at Ikebukuro Station)
    The Tokyo Metro Yurakucho Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s subway network and suburban rail services such as the Tobu Tojo Line.
  • D. Tokyo Metro Marunouchi Line (at Ikebukuro Station)
    The Tokyo Metro Marunouchi Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s metro network and multiple suburban and urban rail lines.
  • E. Jimbocho Station on Toei Shinjuku Line
    Jimbocho Station on the Toei Shinjuku Line is an underground subway station in Tokyo’s Chiyoda ward, serving the Jimbocho district and providing transfers to multiple Tokyo Metro and Toei lines.
  • 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: Roppongi Station on Tokyo Metro Hibiya Line
Triple: [Roppongi Hills, nearbyStation, Roppongi Station on Tokyo Metro Hibiya Line]
Generated description
Roppongi Station on the Tokyo Metro Hibiya Line is a major underground railway station in Tokyo’s Roppongi district, providing access to its nightlife, business centers, and attractions such as Roppongi Hills.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Roppongi Station on Tokyo Metro Hibiya Line
Target entity description: Roppongi Station on the Tokyo Metro Hibiya Line is a major underground railway station in Tokyo’s Roppongi district, providing access to its nightlife, business centers, and attractions such as Roppongi Hills.
  • A. Mejiro Station on Yamanote Line
    Mejiro Station on the Yamanote Line is a small, relatively quiet JR East railway station in Tokyo’s Toshima ward, situated between the major hubs of Ikebukuro and Takadanobaba.
  • B. Tokyo Metro Fukutoshin Line (at Ikebukuro Station)
    The Tokyo Metro Fukutoshin Line at Ikebukuro Station is a major Tokyo subway line and hub section that provides through-services to multiple private railways, facilitating heavy commuter traffic across central and suburban areas.
  • C. Tokyo Metro Yurakucho Line (at Ikebukuro Station)
    The Tokyo Metro Yurakucho Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s subway network and suburban rail services such as the Tobu Tojo Line.
  • D. Tokyo Metro Marunouchi Line (at Ikebukuro Station)
    The Tokyo Metro Marunouchi Line at Ikebukuro Station is a major Tokyo subway line stop that serves as a key transfer point between central Tokyo’s metro network and multiple suburban and urban rail lines.
  • E. Jimbocho Station on Toei Shinjuku Line
    Jimbocho Station on the Toei Shinjuku Line is an underground subway station in Tokyo’s Chiyoda ward, serving the Jimbocho district and providing transfers to multiple Tokyo Metro and Toei lines.
  • 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.