Triple

T7655719
Position Surface form Disambiguated ID Type / Status
Subject San Juan River E173375 entity
Predicate riverSystem P1009 FINISHED
Object Colorado River basin E321362 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: Colorado River basin | Statement: [San Juan River, riverSystem, Colorado 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: Colorado River basin
Context triple: [San Juan River, riverSystem, Colorado River basin]
  • A. Colorado River Basin chosen
    The Colorado River Basin is the vast watershed in the western United States and northern Mexico that collects and channels water from multiple states and tributaries into the Colorado River, supporting major ecosystems, agriculture, and cities across an arid region.
  • B. San Luis Rey River basin
    The San Luis Rey River basin is a watershed region in northern San Diego County, California, that has long served as the homeland and cultural heartland of the Luiseño people.
  • C. Rio Grande basin
    The Rio Grande basin is the extensive watershed of the Rio Grande River, draining parts of Colorado, New Mexico, Texas, and northern Mexico into the Gulf of Mexico.
  • D. Mono River basin
    The Mono River basin is a West African watershed spanning parts of Togo and Benin, known for its role in regional agriculture, hydropower, and biodiversity.
  • E. San Juan River basin
    The San Juan River basin is a Central American watershed that drains Lake Nicaragua and surrounding regions through the San Juan River toward the Caribbean Sea.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69c69955517c819085bc715b96d304d2 elicitation completed
NER batch_69c7018ea3688190907c3ac7d25e3da6 ner completed
NED1 batch_69c8a21dd3088190bb026de65970a14b ned_source_triple completed
Created at: March 27, 2026, 3:59 p.m.