Triple

T16983013
Position Surface form Disambiguated ID Type / Status
Subject Kwanza River E411991 entity
Predicate hasHydroelectricDam P15311 FINISHED
Object Lauca Dam
Lauca Dam is a major hydroelectric dam on Angola’s Kwanza River, built to generate electricity and support the country’s power infrastructure.
 E1263383 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: Lauca Dam | Statement: [Kwanza River, hasHydroelectricDam, Lauca Dam]

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: Lauca Dam
Context triple: [Kwanza River, hasHydroelectricDam, Lauca Dam]
  • A. Valle Grande Dam
    Valle Grande Dam is a hydroelectric and irrigation dam located on the Atuel River in Mendoza Province, Argentina, forming a popular reservoir for water sports and tourism.
  • B. El Cadillal Dam
    El Cadillal Dam is a major hydroelectric and water regulation structure in Tucumán Province, Argentina, forming a large reservoir used for power generation, irrigation, and recreation.
  • C. Colbún Dam
    Colbún Dam is a major hydroelectric dam in Chile that generates power from the Maule River and plays a key role in the country’s energy supply.
  • D. El Chañar Dam
    El Chañar Dam is a hydroelectric and irrigation dam located on the Neuquén River in Argentina’s Neuquén Province.
  • E. Piedra del Águila Dam
    Piedra del Águila Dam is a major hydroelectric dam in Argentine Patagonia, known for its large power-generating capacity and role in regulating the Limay River.
  • 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: Lauca Dam
Target entity description: Lauca Dam is a major hydroelectric dam on Angola’s Kwanza River, built to generate electricity and support the country’s power infrastructure.
  • A. Valle Grande Dam
    Valle Grande Dam is a hydroelectric and irrigation dam located on the Atuel River in Mendoza Province, Argentina, forming a popular reservoir for water sports and tourism.
  • B. El Cadillal Dam
    El Cadillal Dam is a major hydroelectric and water regulation structure in Tucumán Province, Argentina, forming a large reservoir used for power generation, irrigation, and recreation.
  • C. Colbún Dam
    Colbún Dam is a major hydroelectric dam in Chile that generates power from the Maule River and plays a key role in the country’s energy supply.
  • D. El Chañar Dam
    El Chañar Dam is a hydroelectric and irrigation dam located on the Neuquén River in Argentina’s Neuquén Province.
  • E. Piedra del Águila Dam
    Piedra del Águila Dam is a major hydroelectric dam in Argentine Patagonia, known for its large power-generating capacity and role in regulating the Limay River.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Lauca Dam
Triple: [Kwanza River, hasHydroelectricDam, Lauca Dam]
Generated description
Lauca Dam is a major hydroelectric dam on Angola’s Kwanza River, built to generate electricity and support the country’s power infrastructure.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d886ca8f348190812768ea8d5055ce elicitation completed
NER batch_69e3d188ede48190baead48aac84c78d ner completed
NED1 batch_6a018c3489848190869bebedcb5c0564 ned_source_triple completed
NED2 batch_6a018e57fa708190872ad2fb5f660507 ned_description completed
NEDg batch_6a018da48b448190a088d9e537454817 nedg completed
Created at: April 10, 2026, 5:32 a.m.