Triple

T11161486
Position Surface form Disambiguated ID Type / Status
Subject Tokyo Metro Marunouchi Line E264046 entity
Predicate terminus P388 FINISHED
Object Ogikubo Station
Ogikubo Station is a major railway and subway hub in Suginami, Tokyo, serving as an interchange between JR East’s Chūō Line and the Tokyo Metro network.
E1281485 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: Ogikubo Station | Statement: [Tokyo Metro Marunouchi Line, terminus, Ogikubo Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ogikubo Station
Context triple: [Tokyo Metro Marunouchi Line, terminus, Ogikubo Station]
  • A. Ichigaya Station
    Ichigaya Station is a major railway and subway hub in central Tokyo’s Chiyoda ward, serving multiple lines and providing access to nearby government offices, universities, and the Ichigaya district.
  • B. Gokurakubashi Station
    Gokurakubashi Station is a railway station in Kōya, Wakayama Prefecture, Japan, serving as the gateway terminal for visitors traveling by rail to the sacred Mount Kōya temple complex.
  • C. Shiyakusho Station
    Shiyakusho Station is a subway station in Nagoya, Japan, serving the city hall area and providing convenient access to Nagoya Castle.
  • D. Otsuka Station
    Otsuka Station is a railway station in Tokyo, Japan, served by JR East and known for its location on the busy Yamanote Line loop.
  • E. Oimachi Station
    Oimachi Station is a major railway hub in Tokyo’s Shinagawa ward, serving multiple train and subway lines and connecting local neighborhoods with central and suburban areas of the city.
  • 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: Ogikubo Station
Triple: [Tokyo Metro Marunouchi Line, terminus, Ogikubo Station]
Generated description
Ogikubo Station is a major railway and subway hub in Suginami, Tokyo, serving as an interchange between JR East’s Chūō Line and the Tokyo Metro network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ogikubo Station
Target entity description: Ogikubo Station is a major railway and subway hub in Suginami, Tokyo, serving as an interchange between JR East’s Chūō Line and the Tokyo Metro network.
  • A. Ichigaya Station
    Ichigaya Station is a major railway and subway hub in central Tokyo’s Chiyoda ward, serving multiple lines and providing access to nearby government offices, universities, and the Ichigaya district.
  • B. Gokurakubashi Station
    Gokurakubashi Station is a railway station in Kōya, Wakayama Prefecture, Japan, serving as the gateway terminal for visitors traveling by rail to the sacred Mount Kōya temple complex.
  • C. Shiyakusho Station
    Shiyakusho Station is a subway station in Nagoya, Japan, serving the city hall area and providing convenient access to Nagoya Castle.
  • D. Otsuka Station
    Otsuka Station is a railway station in Tokyo, Japan, served by JR East and known for its location on the busy Yamanote Line loop.
  • E. Oimachi Station
    Oimachi Station is a major railway hub in Tokyo’s Shinagawa ward, serving multiple train and subway lines and connecting local neighborhoods with central and suburban areas of the city.
  • 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_69d6aa9ccddc8190868998c8b7beb060 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e8817a90819087820d5241c58851 completed April 9, 2026, 5:57 p.m.
NED1 Entity disambiguation (via context triple) batch_6a02163209608190aa36abc63bc2b4e3 completed May 11, 2026, 5:47 p.m.
NEDg Description generation batch_6a0218872d24819099658d76208edd7e completed May 11, 2026, 5:57 p.m.
NED2 Entity disambiguation (via description) batch_6a02197eeda0819093f180a2b2035705 completed May 11, 2026, 6:01 p.m.
Created at: April 8, 2026, 9:29 p.m.