Triple

T5827884
Position Surface form Disambiguated ID Type / Status
Subject JR Kobe Station E129273 entity
Predicate railwayLine P848 FINISHED
Object Tokaido Main Line E55793 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: Tokaido Main Line | Statement: [JR Kobe Station, railwayLine, Tokaido Main Line]

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: Tokaido Main Line
Context triple: [JR Kobe Station, railwayLine, Tokaido Main Line]
  • A. Tōkaidō Main Line chosen
    The Tōkaidō Main Line is one of Japan’s most important and heavily used railway corridors, linking Tokyo with Osaka and other major cities along the historic Tōkaidō route.
  • B. Nippō Main Line
    The Nippō Main Line is a major railway line in Kyushu, Japan, operated by JR Kyushu and running along the eastern coast to connect key cities including Beppu, Oita, and Miyazaki.
  • C. Kisei Main Line
    The Kisei Main Line is a major railway line in Japan that runs along the Kii Peninsula, connecting cities in Osaka, Wakayama, and Mie Prefectures along the Pacific coast.
  • D. Nara Line
    The Nara Line is a railway line in Japan operated by JR West that connects the historic cities of Kyoto and Nara.
  • E. Sanyo Main Line
    The Sanyo Main Line is a major railway corridor in western Japan connecting the Kansai and Chugoku regions along the Seto Inland Sea coast.
  • 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_69c00849d55481908b4f9f5543e0bf6d elicitation completed
NER batch_69c0341df8dc8190871af068e1f927a2 ner completed
NED1 batch_69c8ac74f44c8190953e486d3a315a64 ned_source_triple completed
Created at: March 22, 2026, 3:53 p.m.