Triple

T15411682
Position Surface form Disambiguated ID Type / Status
Subject Osaka Metro 24 series E368608 entity
Predicate operator P179 FINISHED
Object Osaka Metro E13707 NE FINISHED

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: Osaka Metro | Statement: [Osaka Metro 24 series, operator, Osaka Metro]

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: Osaka Metro
Context triple: [Osaka Metro 24 series, operator, Osaka Metro]
  • A. Osaka Metro chosen
    Osaka Metro is the rapid transit network serving Japan’s city of Osaka and its surrounding urban area.
  • B. Osaka Metro Imazatosuji Line
    The Osaka Metro Imazatosuji Line is a rapid transit line in Osaka, Japan, running north–south through the city and connecting residential districts with major interchange hubs on the Osaka Metro network.
  • C. Osaka Metro Chuo Line
    The Osaka Metro Chuo Line is a major rapid transit line in Osaka, Japan, running east–west through the city and serving key commercial, business, and waterfront areas.
  • D. Osaka Metro Tanimachi Line
    The Osaka Metro Tanimachi Line is a major north–south subway line in Osaka, Japan, connecting key commercial and residential districts across the city.
  • E. Osaka Metro Sakaisuji Line
    The Osaka Metro Sakaisuji Line is a rapid transit line in Osaka, Japan, running north–south through the city and connecting key commercial and residential districts.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d85a16c68c819099c1b547fbc87b32 elicitation completed
NER batch_69e03ea600b48190a3dbca1a68a2a1cd ner completed
NED1 batch_69ff1a61136081908198806944c81808 ned_source_triple completed
Created at: April 10, 2026, 3:20 a.m.