Triple

T5787300
Position Surface form Disambiguated ID Type / Status
Subject Osaka Metro Chuo Line E128298 entity
Predicate hasRollingStock P1305 FINISHED
Object Osaka Metro 24 series E368608 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 24 series | Statement: [Osaka Metro Chuo Line, hasRollingStock, Osaka Metro 24 series]

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 24 series
Context triple: [Osaka Metro Chuo Line, hasRollingStock, Osaka Metro 24 series]
  • A. Osaka Metro 24 series chosen
    The Osaka Metro 24 series is a type of electric multiple unit train used for urban rapid transit services on Osaka’s subway network.
  • B. Osaka Metro 20 series
    The Osaka Metro 20 series is a type of electric multiple unit train used on Osaka's subway network, known for its stainless-steel construction and service on several key lines.
  • C. Osaka Metro 23 series
    The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
  • D. Osaka Metro 25 series
    The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
  • E. Osaka Metro 30000 series
    The Osaka Metro 30000 series is a modern electric multiple unit train type operated by Osaka Metro, featuring air conditioning, energy-efficient systems, and improved passenger comfort for urban subway services.
  • 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_69c0084450048190bc647b649a05136b elicitation completed
NER batch_69c02a5297c88190bd28adb2552a26f4 ner completed
NED1 batch_69c0a17582f48190af88b000ced8b7b5 ned_source_triple completed
Created at: March 22, 2026, 3:51 p.m.