Triple

T5685068
Position Surface form Disambiguated ID Type / Status
Subject Máfil E125290 entity
Predicate locatedInBasin P18951 FINISHED
Object Valdivia River basin E129699 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: Valdivia River basin | Statement: [Máfil, locatedInBasin, Valdivia 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: Valdivia River basin
Context triple: [Máfil, locatedInBasin, Valdivia River basin]
  • A. Aysén River basin
    The Aysén River basin is a major watershed in Chilean Patagonia that collects meltwater from surrounding glaciers and ice fields, including the Northern Patagonian Ice Field, before flowing westward to the Pacific Ocean.
  • B. Abra River basin
    The Abra River basin is a major watershed in northern Luzon, Philippines, encompassing the drainage area of the Abra River and supporting surrounding agricultural, ecological, and upland communities.
  • C. Valdivia River chosen
    The Valdivia River is a significant waterway in southern Chile known for flowing through the city of Valdivia and forming an important part of the region’s historical trade and transportation network.
  • D. Rancagua Basin
    The Rancagua Basin is a fertile geological and agricultural subregion in central Chile, known for its mining activity and intensive fruit and wine production.
  • E. San Jorge River basin
    The San Jorge River basin is a region in northern Colombia historically inhabited and shaped by the Zenú Indigenous people, known for their advanced hydraulic engineering and rich pre-Columbian culture.
  • 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_69c0082a884c8190a79001bae658941f elicitation completed
NER batch_69c023ba52b48190b94f8a3ecff61eb4 ner completed
NED1 batch_69c64096580481909a253f26b9535d9f ned_source_triple completed
Created at: March 22, 2026, 3:44 p.m.