Triple

T22363413
Position Surface form Disambiguated ID Type / Status
Subject Uonuma E552836 entity
Predicate locatedIn P40 FINISHED
Object Chūbu region — 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: Chūbu region | Statement: [Uonuma, locatedIn, Chūbu region]

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: Chūbu region
Context triple: [Uonuma, locatedIn, Chūbu region]
  • A. Chūbu region chosen
    The Chūbu region is a central area of Japan on Honshu Island, known for encompassing the Japanese Alps and including major prefectures such as Aichi, Nagano, and Shizuoka.
  • B. Kōshin'etsu region
    The Kōshin'etsu region is a landlocked area of central Honshu, Japan, traditionally comprising Yamanashi, Nagano, and Niigata Prefectures and known for its mountains, hot springs, and ski resorts.
  • C. Kansai region
    The Kansai region is a major cultural and economic area of western Japan that includes cities such as Osaka, Kyoto, and Kobe and is known as a historic heartland of Japanese civilization.
  • D. Sanyō region
    The Sanyō region is a major industrial and urban area along the southern coast of Japan’s Honshu island, facing the Seto Inland Sea and encompassing key cities such as Hiroshima and Okayama.
  • E. Chūō region
    The Chūō region is a central area of Japan that lies along the Chūō Main Line, connecting major inland cities between Tokyo and Nagoya.
  • 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_69e11e4affcc8190ba7c27d29062558d elicitation completed
NER batch_69f157d616748190921bd49039b7f6fc ner completed
Created at: April 16, 2026, 8:44 p.m.