Triple

T23267494
Position Surface form Disambiguated ID Type / Status
Subject Pilmaiquén River E588191 entity
Predicate hasHydroelectricPlant P15311 FINISHED
Object Ralco-Los Lagos hydroelectric facilities — 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: Ralco-Los Lagos hydroelectric facilities | Statement: [Pilmaiquén River, hasHydroelectricPlant, Ralco-Los Lagos hydroelectric facilities]

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: Ralco-Los Lagos hydroelectric facilities
Context triple: [Pilmaiquén River, hasHydroelectricPlant, Ralco-Los Lagos hydroelectric facilities]
  • A. Tinguiririca hydroelectric facilities
    The Tinguiririca hydroelectric facilities are a complex of power plants in central Chile that harness the flow of the Tinguiririca River to generate renewable electricity for the national grid.
  • B. Queltehues hydroelectric plant
    The Queltehues hydroelectric plant is a power-generating facility in Chile that harnesses the flow of the Maipo River to produce electricity.
  • C. Biobío River hydroelectric cascade
    The Biobío River hydroelectric cascade is a series of large hydroelectric power projects on Chile’s Biobío River that collectively generate significant electricity while being associated with major environmental and social impacts.
  • D. Comahue hydroelectric complex
    The Comahue hydroelectric complex is a major system of dams and power plants in Argentina’s Comahue region that harnesses the flow of rivers such as the Limay to generate electricity.
  • E. Maule hydropower complex
    The Maule hydropower complex is a system of hydroelectric facilities on Chile’s Maule River that generates electricity by harnessing the river’s flow.
  • 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: Ralco-Los Lagos hydroelectric facilities
Target entity description: The Ralco-Los Lagos hydroelectric facilities are a major complex of dams and power plants in southern Chile that harness the Pilmaiquén River to generate electricity for the national grid.
  • A. Tinguiririca hydroelectric facilities
    The Tinguiririca hydroelectric facilities are a complex of power plants in central Chile that harness the flow of the Tinguiririca River to generate renewable electricity for the national grid.
  • B. Queltehues hydroelectric plant
    The Queltehues hydroelectric plant is a power-generating facility in Chile that harnesses the flow of the Maipo River to produce electricity.
  • C. Biobío River hydroelectric cascade
    The Biobío River hydroelectric cascade is a series of large hydroelectric power projects on Chile’s Biobío River that collectively generate significant electricity while being associated with major environmental and social impacts.
  • D. Comahue hydroelectric complex
    The Comahue hydroelectric complex is a major system of dams and power plants in Argentina’s Comahue region that harnesses the flow of rivers such as the Limay to generate electricity.
  • E. Maule hydropower complex
    The Maule hydropower complex is a system of hydroelectric facilities on Chile’s Maule River that generates electricity by harnessing the river’s flow.
  • F. None of above. chosen

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e25d148adc819088efbf42672604e9 elicitation completed
NER batch_69f19570fcc0819091df22140828155b ner completed
Created at: April 17, 2026, 4:38 p.m.