Triple

T10945558
Position Surface form Disambiguated ID Type / Status
Subject Tokyo Metro Namboku Line E258586 entity
Predicate hasStation P35 FINISHED
Object Roppongi-itchome Station
Roppongi-itchome Station is an underground Tokyo Metro station in Tokyo’s Roppongi district, serving commuters and visitors in a major business and nightlife area.
E669549 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-itchome Station | Statement: [Tokyo Metro Namboku Line, hasStation, Roppongi-itchome Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Roppongi-itchome Station
Context triple: [Tokyo Metro Namboku Line, hasStation, Roppongi-itchome Station]
  • A. Roppongi Station
    Roppongi Station is a major Tokyo subway station in the Roppongi district, serving as a key access point to the area’s nightlife, business centers, and cultural attractions.
  • B. Shinjuku-sanchome Station
    Shinjuku-sanchome Station is a major underground railway station in Tokyo’s Shinjuku district that serves multiple Tokyo Metro lines and provides convenient access to shopping, entertainment, and business areas.
  • C. Nakameguro Station
    Nakameguro Station is a major railway station in Tokyo’s Meguro ward that serves as an important transit hub and gateway to the trendy Nakameguro neighborhood.
  • D. Shirokane-takanawa Station
    Shirokane-takanawa Station is a subway station in Minato, Tokyo, jointly operated by Tokyo Metro and Toei Subway, serving as an interchange between the Namboku and Mita lines.
  • E. Omotesando Station
    Omotesando Station is a major Tokyo subway hub in the fashionable Omotesandō district, serving multiple lines and providing access to upscale shopping and cultural attractions.
  • 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-itchome Station
Triple: [Tokyo Metro Namboku Line, hasStation, Roppongi-itchome Station]
Generated description
Roppongi-itchome Station is an underground Tokyo Metro station in Tokyo’s Roppongi district, serving commuters and visitors in a major business and nightlife area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Roppongi-itchome Station
Target entity description: Roppongi-itchome Station is an underground Tokyo Metro station in Tokyo’s Roppongi district, serving commuters and visitors in a major business and nightlife area.
  • A. Roppongi Station chosen
    Roppongi Station is a major Tokyo subway station in the Roppongi district, serving as a key access point to the area’s nightlife, business centers, and cultural attractions.
  • B. Shinjuku-sanchome Station
    Shinjuku-sanchome Station is a major underground railway station in Tokyo’s Shinjuku district that serves multiple Tokyo Metro lines and provides convenient access to shopping, entertainment, and business areas.
  • C. Nakameguro Station
    Nakameguro Station is a major railway station in Tokyo’s Meguro ward that serves as an important transit hub and gateway to the trendy Nakameguro neighborhood.
  • D. Shirokane-takanawa Station
    Shirokane-takanawa Station is a subway station in Minato, Tokyo, jointly operated by Tokyo Metro and Toei Subway, serving as an interchange between the Namboku and Mita lines.
  • E. Omotesando Station
    Omotesando Station is a major Tokyo subway hub in the fashionable Omotesandō district, serving multiple lines and providing access to upscale shopping and cultural attractions.
  • F. None of above.

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_69d6aa8769b4819082bfe5e61b9017f0 completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d770e9a89081908979efd1d9e6af66 completed April 9, 2026, 9:27 a.m.
NED1 Entity disambiguation (via context triple) batch_69ffbe5eeba08190849171d079745d1a completed May 9, 2026, 11:08 p.m.
NEDg Description generation batch_69ffbf70d6488190944986503882678d completed May 9, 2026, 11:12 p.m.
NED2 Entity disambiguation (via description) batch_69ffc08179488190a8f434121bede859 completed May 9, 2026, 11:17 p.m.
Created at: April 8, 2026, 9:23 p.m.