Triple

T16983036
Position Surface form Disambiguated ID Type / Status
Subject Kwanza River E411991 entity
Predicate hasWatershed P17416 FINISHED
Object Kwanza River basin
The Kwanza River basin is the extensive drainage area in Angola that collects and channels water into the country’s longest and most economically important river, supporting agriculture, hydropower, and diverse ecosystems.
 E411991 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: Kwanza River basin | Statement: [Kwanza River, hasWatershed, Kwanza River basin]

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: Kwanza River basin
Context triple: [Kwanza River, hasWatershed, Kwanza River basin]
  • A. Mwenezi River basin
    The Mwenezi River basin is a drainage area in southern Africa that collects and channels the waters of the Mwenezi River and its tributaries across parts of Zimbabwe and Mozambique.
  • B. Athi River basin
    The Athi River basin is a major drainage basin in Kenya that collects waters from rivers such as the Nairobi River and ultimately feeds into the Indian Ocean.
  • C. Zambezi Basin
    The Zambezi Basin is the vast river catchment area in southern Africa that collects the waters of the Zambezi River and its tributaries, encompassing parts of several countries and supporting major ecosystems, agriculture, and hydropower.
  • D. Sanaga River basin
    The Sanaga River basin is the extensive watershed in Cameroon that collects and channels rainfall and tributary flows into the Sanaga River, the country’s largest river system and a key resource for hydropower, ecosystems, and local livelihoods.
  • E. Kwanza River
    The Kwanza River is one of Angola’s longest and most important rivers, historically vital for transport, agriculture, and hydroelectric power in the country.
  • 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: Kwanza River basin
Target entity description: The Kwanza River basin is the extensive drainage area in Angola that collects and channels water into the country’s longest and most economically important river, supporting agriculture, hydropower, and diverse ecosystems.
  • A. Mwenezi River basin
    The Mwenezi River basin is a drainage area in southern Africa that collects and channels the waters of the Mwenezi River and its tributaries across parts of Zimbabwe and Mozambique.
  • B. Athi River basin
    The Athi River basin is a major drainage basin in Kenya that collects waters from rivers such as the Nairobi River and ultimately feeds into the Indian Ocean.
  • C. Zambezi Basin
    The Zambezi Basin is the vast river catchment area in southern Africa that collects the waters of the Zambezi River and its tributaries, encompassing parts of several countries and supporting major ecosystems, agriculture, and hydropower.
  • D. Sanaga River basin
    The Sanaga River basin is the extensive watershed in Cameroon that collects and channels rainfall and tributary flows into the Sanaga River, the country’s largest river system and a key resource for hydropower, ecosystems, and local livelihoods.
  • E. Kwanza River chosen
    The Kwanza River is one of Angola’s longest and most important rivers, historically vital for transport, agriculture, and hydroelectric power in the country.
  • F. None of above.

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: Kwanza River basin
Triple: [Kwanza River, hasWatershed, Kwanza River basin]
Generated description
The Kwanza River basin is the extensive drainage area in Angola that collects and channels water into the country’s longest and most economically important river, supporting agriculture, hydropower, and diverse ecosystems.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d886ca8f348190812768ea8d5055ce elicitation completed
NER batch_69e3d188ede48190baead48aac84c78d ner completed
NED1 batch_6a0170df4d1c81909dd05abfd1cfc2ac ned_source_triple completed
NED2 batch_6a01732467408190b78c32296e20b55f ned_description completed
NEDg batch_6a0172a34194819094c290be86ec0e7e nedg completed
Created at: April 10, 2026, 5:32 a.m.