Triple

T8397098
Position Surface form Disambiguated ID Type / Status
Subject Kita, Tokyo E198080 entity
Predicate partOf P40 FINISHED
Object Kantō region E54245 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: Kantō region | Statement: [Kita, Tokyo, partOf, Kantō 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: Kantō region
Context triple: [Kita, Tokyo, partOf, Kantō region]
  • A. Kantō region chosen
    The Kantō region is a major geographical and economic area of eastern Honshu, Japan, encompassing Tokyo and several surrounding prefectures and serving as the country’s political and population center.
  • B. North Kantō
    North Kantō is a subregion in eastern Japan generally referring to the inland northern prefectures of the Kantō region, known for their mix of industrial cities, agriculture, and natural landscapes.
  • C. Chūbu region
    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.
  • D. 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.
  • E. Kantōgun
    Kantōgun was the Imperial Japanese Army's Kwantung Army, a powerful and influential military force stationed in Manchuria that played a central role in Japan's expansionist policies before and during World War II.
  • 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_69ca82f816bc8190ab321c07d72208c1 elicitation completed
NER batch_69cb818893348190a6ea2ff6a2e3e491 ner completed
NED1 batch_69ce88498cf081909c25c292c014fe8c ned_source_triple completed
Created at: March 30, 2026, 6:04 p.m.