Triple

T18309836
Position Surface form Disambiguated ID Type / Status
Subject Mount Hakkoda E438591 entity
Predicate volcanicArc P2408 FINISHED
Object Northeastern Japan Arc — 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: Northeastern Japan Arc | Statement: [Mount Hakkoda, volcanicArc, Northeastern Japan Arc]

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: Northeastern Japan Arc
Context triple: [Mount Hakkoda, volcanicArc, Northeastern Japan Arc]
  • A. Northeastern Japan Arc chosen
    The Northeastern Japan Arc is a major volcanic arc in northern Honshu formed by subduction along the Japan Trench, characterized by numerous active and dormant volcanoes including Mount Akagi.
  • B. Southwest Japan Arc
    The Southwest Japan Arc is a major volcanic and tectonic arc in southwestern Japan, characterized by active volcanoes such as Mount Aso and formed by the subduction of oceanic plates beneath the Eurasian Plate.
  • C. Izu–Bonin Arc
    The Izu–Bonin Arc is a volcanic island arc in the western Pacific Ocean formed by subduction along the boundary of the Philippine Sea Plate, stretching south from Japan’s Izu Peninsula toward the Mariana Islands.
  • D. Atlantic Arc
    Atlantic Arc is a transnational European region and cooperation framework encompassing the Atlantic coastal areas of several Western European countries, focused on shared maritime, economic, and cultural interests.
  • E. Hokkaido Volcanic Front
    The Hokkaido Volcanic Front is a major volcanic zone in Japan’s northernmost island where subduction-related tectonic activity produces numerous active and dormant volcanoes.
  • 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_69d8b915e3e881909125d760c15d0c29 elicitation completed
NER batch_69e5021709f88190a8047dd57edc2029 ner completed
Created at: April 10, 2026, 10:36 a.m.