Triple

T18362099
Position Surface form Disambiguated ID Type / Status
Subject Príncipe Island E439942 entity
Predicate locatedOn P40 FINISHED
Object Cameroon volcanic line — 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: Cameroon volcanic line | Statement: [Príncipe Island, locatedOn, Cameroon volcanic 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: Cameroon volcanic line
Context triple: [Príncipe Island, locatedOn, Cameroon volcanic line]
  • A. Cameroon Volcanic Line chosen
    The Cameroon Volcanic Line is a major chain of volcanoes and volcanic formations stretching from the Gulf of Guinea islands into mainland Central Africa, known for its active and geologically complex features.
  • B. Cameroon Line
    The Cameroon Line is a chain of volcanic mountains and islands stretching from the Gulf of Guinea into mainland Central Africa, known for its active and dormant volcanoes such as Mount Cameroon.
  • C. East African Volcanic Province
    The East African Volcanic Province is a major tectonically active region in East Africa characterized by extensive volcanic activity associated with the East African Rift system.
  • D. Western Highlands of Cameroon
    The Western Highlands of Cameroon is a mountainous, temperate region in western Cameroon known for its volcanic landscapes, fertile soils, and dense rural populations engaged in agriculture.
  • E. Comoros archipelago volcanic chain
    The Comoros archipelago volcanic chain is a series of volcanic islands in the western Indian Ocean formed by hotspot-related tectonic activity between Madagascar and the African mainland.
  • 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_69d8b918221c8190a9f7b563d64ac677 elicitation completed
NER batch_69e516dbd4748190a6c5715ef943bd4a ner completed
Created at: April 10, 2026, 10:37 a.m.