Triple

T21312197
Position Surface form Disambiguated ID Type / Status
Subject Asa River E525366 entity
Predicate region P40 FINISHED
Object North Central Nigeria — 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: North Central Nigeria | Statement: [Asa River, region, North Central Nigeria]

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: North Central Nigeria
Context triple: [Asa River, region, North Central Nigeria]
  • A. North Central Nigeria chosen
    North Central Nigeria is a geopolitical zone of Nigeria that includes the federal capital territory and several surrounding states in the country’s middle belt.
  • B. North West Nigeria
    North West Nigeria is a geopolitical zone of Nigeria comprising several predominantly Hausa-speaking states, known for its large population, historic emirates, and significant role in the country’s politics and agriculture.
  • C. North East Nigeria
    North East Nigeria is a geopolitical zone of Nigeria comprising several states in the country’s far northeastern corner, bordering countries like Cameroon, Chad, and Niger and known for its diverse ethnic groups and security challenges.
  • D. Northern Region of Nigeria
    The Northern Region of Nigeria was a former administrative division of Nigeria during the colonial and early post-independence periods, encompassing much of the country’s northern area and dominated politically by Hausa-Fulani emirates and Islamic institutions.
  • E. Central Nigeria
    Central Nigeria is a region in the middle of Nigeria known for its ethnic diversity, agricultural activities, and role as a geographic and cultural bridge between the country’s northern and southern areas.
  • 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_69e0b518b8948190ad69cf9a8784d397 elicitation completed
NER batch_69e75dca66ac8190a5f0a372a9bc25a7 ner completed
Created at: April 16, 2026, 4:22 p.m.