Triple

T6038048
Position Surface form Disambiguated ID Type / Status
Subject Paranaíba River E134470 entity
Predicate hasTributary P415 FINISHED
Object Corumbá River
The Corumbá River is a significant waterway in central Brazil that flows through the states of Goiás and Mato Grosso do Sul, supporting hydroelectric power generation and regional agriculture before joining the Paranaíba River.
 E598570 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: Corumbá River | Statement: [Paranaíba River, hasTributary, Corumbá River]

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: Corumbá River
Context triple: [Paranaíba River, hasTributary, Corumbá River]
  • A. Taquari River
    The Taquari River is a significant waterway in central-western Brazil that flows through the Pantanal wetlands before joining the Paraguay River.
  • B. Sombreiro River
    The Sombreiro River is a significant waterway in southern Nigeria that flows through the Niger Delta region, supporting local transportation, fishing, and agriculture.
  • C. Teles Pires River
    The Teles Pires River is a major waterway in central-western Brazil that forms part of the upper Amazon basin and serves as an important natural boundary and resource in the region.
  • D. Branco River
    The Branco River is a significant tributary of the Rio Negro in northern Brazil, draining part of the Guiana Shield and playing a key role in the Amazon Basin’s hydrology and regional ecosystems.
  • E. Cururu River
    The Cururu River is a tributary waterway in northern Brazil that feeds into the larger Tapajós River system within the Amazon Basin.
  • 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: Corumbá River
Target entity description: The Corumbá River is a significant waterway in central Brazil that flows through the states of Goiás and Mato Grosso do Sul, supporting hydroelectric power generation and regional agriculture before joining the Paranaíba River.
  • A. Taquari River
    The Taquari River is a significant waterway in central-western Brazil that flows through the Pantanal wetlands before joining the Paraguay River.
  • B. Sombreiro River
    The Sombreiro River is a significant waterway in southern Nigeria that flows through the Niger Delta region, supporting local transportation, fishing, and agriculture.
  • C. Teles Pires River
    The Teles Pires River is a major waterway in central-western Brazil that forms part of the upper Amazon basin and serves as an important natural boundary and resource in the region.
  • D. Branco River
    The Branco River is a significant tributary of the Rio Negro in northern Brazil, draining part of the Guiana Shield and playing a key role in the Amazon Basin’s hydrology and regional ecosystems.
  • E. Cururu River
    The Cururu River is a tributary waterway in northern Brazil that feeds into the larger Tapajós River system within the Amazon Basin.
  • 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: Corumbá River
Triple: [Paranaíba River, hasTributary, Corumbá River]
Generated description
The Corumbá River is a significant waterway in central Brazil that flows through the states of Goiás and Mato Grosso do Sul, supporting hydroelectric power generation and regional agriculture before joining the Paranaíba River.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69c00875db5c819099dd5bb833ec43c2 elicitation completed
NER batch_69c056ccac948190a27547878d4db8e4 ner completed
NED1 batch_69c67c36eac4819095b6a2b9e8a277f0 ned_source_triple completed
NED2 batch_69c67df2fb2081909ea5739efaa86770 ned_description completed
NEDg batch_69c67d8ce4f081908c95cfcdd690861c nedg completed
Created at: March 22, 2026, 4:08 p.m.