Triple

T16983012
Position Surface form Disambiguated ID Type / Status
Subject Kwanza River E411991 entity
Predicate hasHydroelectricDam P15311 FINISHED
Object Cambambe Dam
Cambambe Dam is a major hydroelectric dam in Angola that generates power from the Kwanza River to support the country’s electricity supply and industrial development.
 E1261374 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: Cambambe Dam | Statement: [Kwanza River, hasHydroelectricDam, Cambambe 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: Cambambe Dam
Context triple: [Kwanza River, hasHydroelectricDam, Cambambe Dam]
  • A. Itumbiara Dam
    Itumbiara Dam is a large hydroelectric dam in Brazil known for generating significant electricity and forming one of the country’s major artificial reservoirs.
  • B. Bariri Dam
    Bariri Dam is a hydroelectric and river regulation structure located on Brazil’s Tietê River, contributing to regional power generation and water management.
  • C. Capanda Dam
    Capanda Dam is a major hydroelectric dam in Angola that generates power and supports regional development along the Kwanza River.
  • D. Kamburu Dam
    Kamburu Dam is a major hydroelectric power station on Kenya’s Tana River, forming part of the country’s Seven Forks cascade of dams.
  • E. Betania Dam
    Betania Dam is a major hydroelectric dam and reservoir in Colombia, known for generating power and supporting irrigation and aquaculture in the Huila region.
  • 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: Cambambe Dam
Target entity description: Cambambe Dam is a major hydroelectric dam in Angola that generates power from the Kwanza River to support the country’s electricity supply and industrial development.
  • A. Itumbiara Dam
    Itumbiara Dam is a large hydroelectric dam in Brazil known for generating significant electricity and forming one of the country’s major artificial reservoirs.
  • B. Bariri Dam
    Bariri Dam is a hydroelectric and river regulation structure located on Brazil’s Tietê River, contributing to regional power generation and water management.
  • C. Capanda Dam
    Capanda Dam is a major hydroelectric dam in Angola that generates power and supports regional development along the Kwanza River.
  • D. Kamburu Dam
    Kamburu Dam is a major hydroelectric power station on Kenya’s Tana River, forming part of the country’s Seven Forks cascade of dams.
  • E. Betania Dam
    Betania Dam is a major hydroelectric dam and reservoir in Colombia, known for generating power and supporting irrigation and aquaculture in the Huila region.
  • 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: Cambambe Dam
Triple: [Kwanza River, hasHydroelectricDam, Cambambe Dam]
Generated description
Cambambe Dam is a major hydroelectric dam in Angola that generates power from the Kwanza River to support the country’s electricity supply and industrial development.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d886ca8f348190812768ea8d5055ce elicitation completed
NER batch_69e3d188ede48190baead48aac84c78d ner completed
NED1 batch_6a0180c181b08190a6e8912f4e1da6a0 ned_source_triple completed
NED2 batch_6a0183c05d508190bed2e82bd2cff222 ned_description completed
NEDg batch_6a01834235e88190b842f32bec1a7b61 nedg completed
Created at: April 10, 2026, 5:32 a.m.