Triple

T21976553
Position Surface form Disambiguated ID Type / Status
Subject Tocho E542719 entity
Predicate owner P347 FINISHED
Object Tokyo Metropolitan Government — NE NERFINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Tokyo Metropolitan Government | Statement: [Tocho, owner, Tokyo Metropolitan Government]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tokyo Metropolitan Government
Context triple: [Tocho, owner, Tokyo Metropolitan Government]
  • A. Tokyo Metropolitan Government chosen
    The Tokyo Metropolitan Government is the administrative body responsible for governing Tokyo’s 23 special wards and surrounding municipalities, overseeing regional policies, public services, and urban planning for Japan’s capital.
  • B. Kanagawa Prefectural Government
    Kanagawa Prefectural Government is the administrative authority responsible for governing Kanagawa Prefecture in Japan, overseeing regional policies, public services, and coordination with municipal governments such as Yokohama.
  • C. Minato City Government
    Minato City Government is the municipal administrative body responsible for governing and providing public services in Tokyo’s Minato Ward.
  • D. Chuo City government
    The Chuo City government is the municipal authority responsible for administering Tokyo’s Chuo ward, including major commercial areas such as Kyobashi, Ginza, and Nihonbashi.
  • E. Chiba Prefectural Government
    Chiba Prefectural Government is the administrative authority of Chiba Prefecture in Japan, responsible for regional governance, public services, and economic development policies.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e0c48070988190909db97667b9a0ac elicitation completed
NER batch_69f12489889c81909c847cf2f6808d85 ner completed
Created at: April 16, 2026, 8:03 p.m.