Triple

T15376144
Position Surface form Disambiguated ID Type / Status
Subject Arctic Ocean seafloor E367673 entity
Predicate hasFeature P182 FINISHED
Object Lomonosov Ridge E12617 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: Lomonosov Ridge | Statement: [Arctic Ocean seafloor, hasFeature, Lomonosov Ridge]

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: Lomonosov Ridge
Context triple: [Arctic Ocean seafloor, hasFeature, Lomonosov Ridge]
  • A. Lomonosov Ridge chosen
    Lomonosov Ridge is a major underwater mountain range in the Arctic Ocean that stretches across the polar basin and plays a key role in regional geology and continental shelf claims.
  • B. Knipovich Ridge
    Knipovich Ridge is a slow-spreading mid-ocean ridge in the Arctic Ocean, forming part of the boundary between the Eurasian and North American tectonic plates.
  • C. Alpha–Mendeleev Ridge complex
    The Alpha–Mendeleev Ridge complex is a large submarine volcanic ridge system in the Arctic Ocean, forming part of the ocean floor topography between the Eurasian and Amerasian basins.
  • D. Carlsberg Ridge
    Carlsberg Ridge is a mid-ocean ridge in the northern Indian Ocean that forms part of the seafloor spreading system between the African, Arabian, and Indian tectonic plates.
  • E. Nansen-Gakkel Ridge
    Nansen-Gakkel Ridge is a slow-spreading mid-ocean ridge located beneath the Arctic Ocean, forming part of the seafloor spreading system between the Eurasian and North American tectonic plates.
  • 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_69d85a1551a08190ba2caea7cd51c639 elicitation completed
NER batch_69e03e5ece1081908d7c1289258b9c1f ner completed
NED1 batch_69ff0b5502508190bd39b6d81ee57cc0 ned_source_triple completed
Created at: April 10, 2026, 3:18 a.m.