Triple

T8177157
Position Surface form Disambiguated ID Type / Status
Subject ITX-Saemaeul E190965 entity
Predicate owner P347 FINISHED
Object Korail E190963 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: Korail | Statement: [ITX-Saemaeul, owner, Korail]

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: Korail
Context triple: [ITX-Saemaeul, owner, Korail]
  • A. Korail chosen
    Korail is South Korea's national railroad operator, managing the country's major passenger and freight rail services.
  • B. KTX
    KTX is South Korea’s high-speed rail service that connects major cities such as Seoul and Busan.
  • C. Hanwa Line
    The Hanwa Line is a major railway line in Japan’s Kansai region operated by JR West, connecting central Osaka with southern Osaka Prefecture and Wakayama.
  • D. Incheon Airport Railroad (AREX)
    Incheon Airport Railroad (AREX) is a rail line in South Korea that connects central Seoul with Incheon International Airport and Gimpo International Airport, providing fast airport rail service for travelers.
  • E. ITX-Cheongchun
    ITX-Cheongchun is a South Korean intercity express train service connecting Seoul with major regional cities, designed to offer faster and more comfortable travel for young and general passengers alike.
  • 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_69ca82c1c0a08190bf8692b4d91a03ca elicitation completed
NER batch_69cb4aba0dd88190828080d0d89612eb ner completed
NED1 batch_69cd94bbdc288190aee5187e95ca7a8d ned_source_triple completed
Created at: March 30, 2026, 5:40 p.m.