Triple

T22856478
Position Surface form Disambiguated ID Type / Status
Subject Itumbiara Reservoir E566496 entity
Predicate partOf P40 FINISHED
Object Itumbiara Hydroelectric Power Plant — 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: Itumbiara Hydroelectric Power Plant | Statement: [Itumbiara Reservoir, partOf, Itumbiara Hydroelectric Power Plant]

Disambiguation candidates (2 decisions)

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: Itumbiara Hydroelectric Power Plant
Context triple: [Itumbiara Reservoir, partOf, Itumbiara Hydroelectric Power Plant]
  • A. Bariri Hydroelectric Power Plant
    Bariri Hydroelectric Power Plant is a hydroelectric facility in Brazil that generates electricity using water impounded by the Bariri Dam.
  • B. Alicurá Hydroelectric Power Station
    Alicurá Hydroelectric Power Station is a major hydroelectric facility in Argentina that generates electricity using water impounded by the Alicurá Dam on the Limay River.
  • C. Binga Hydroelectric Power Plant
    Binga Hydroelectric Power Plant is a major hydroelectric facility in the Philippines that generates electricity using water impounded by the Binga Dam on the Agno River.
  • D. Funil Hydroelectric Plant
    The Funil Hydroelectric Plant is a Brazilian power station that generates electricity from the waters of the Paraíba do Sul River.
  • E. Vacha Hydroelectric Power Plant
    Vacha Hydroelectric Power Plant is a hydroelectric power station in Bulgaria that harnesses the flow of the Vacha River to generate electricity.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Itumbiara Hydroelectric Power Plant
Target entity description: The Itumbiara Hydroelectric Power Plant is a major Brazilian dam and power station on the Paranaíba River, known for its large installed capacity and significant role in the country’s electricity generation.
  • A. Bariri Hydroelectric Power Plant
    Bariri Hydroelectric Power Plant is a hydroelectric facility in Brazil that generates electricity using water impounded by the Bariri Dam.
  • B. Alicurá Hydroelectric Power Station
    Alicurá Hydroelectric Power Station is a major hydroelectric facility in Argentina that generates electricity using water impounded by the Alicurá Dam on the Limay River.
  • C. Binga Hydroelectric Power Plant
    Binga Hydroelectric Power Plant is a major hydroelectric facility in the Philippines that generates electricity using water impounded by the Binga Dam on the Agno River.
  • D. Funil Hydroelectric Plant
    The Funil Hydroelectric Plant is a Brazilian power station that generates electricity from the waters of the Paraíba do Sul River.
  • E. Vacha Hydroelectric Power Plant
    Vacha Hydroelectric Power Plant is a hydroelectric power station in Bulgaria that harnesses the flow of the Vacha River to generate electricity.
  • F. None of above. chosen

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e2458750b481908a8e4cf4609cc6cf elicitation completed
NER batch_69f17ebd7d48819085f350f2ce4144a0 ner completed
Created at: April 17, 2026, 3:37 p.m.