Triple

T22775765
Position Surface form Disambiguated ID Type / Status
Subject São Simão Dam E563692 entity
Predicate riverBasin P1559 FINISHED
Object Paraná River basin — 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: Paraná River basin | Statement: [São Simão Dam, riverBasin, Paraná River basin]

Disambiguation candidates (1 decision)

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: Paraná River basin
Context triple: [São Simão Dam, riverBasin, Paraná River basin]
  • A. Paraná–Paraguay Basin chosen
    The Paraná–Paraguay Basin is a major South American river basin encompassing extensive freshwater ecosystems across parts of Brazil, Paraguay, Argentina, and neighboring countries.
  • B. Negro River basin
    The Negro River basin is a major sub-basin of the Amazon system, encompassing the vast drainage area of the Rio Negro and its tributaries in northern South America.
  • C. Upper Paraná River basin
    The Upper Paraná River basin is the extensive drainage area in south-central Brazil that collects waters from major tributaries like the Paranaíba River before forming the main Paraná River.
  • D. Rio Pardo basin
    The Rio Pardo basin is a river drainage system in the state of Rio Grande do Sul, Brazil, encompassing municipalities such as Santa Cruz do Sul and supporting regional agriculture and settlements.
  • E. Brazil Basin
    The Brazil Basin is a deep oceanic basin in the western South Atlantic characterized by extensive abyssal plains and significant deep-water circulation.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e24554497c819080b996e071de27c2 elicitation completed
NER batch_69f17b61acf881909d9f54e0966ee3cc ner completed
Created at: April 17, 2026, 3:28 p.m.