Triple

T9433208
Position Surface form Disambiguated ID Type / Status
Subject Lualaba River E227434 entity
Predicate drainageBasin P1559 FINISHED
Object Congo River basin E29137 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: Congo River basin | Statement: [Lualaba River, drainageBasin, Congo 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: Congo River basin
Context triple: [Lualaba River, drainageBasin, Congo River basin]
  • A. Congo
    Congo is a Central African country whose economy is heavily reliant on oil production and exports.
  • B. Congo River chosen
    The Congo River is Africa’s second-longest river and the world’s deepest, flowing through central Africa to the Atlantic Ocean and serving as a major waterway for transport, ecology, and regional economies.
  • C. Bandama River basin
    The Bandama River basin is the largest river drainage system in Côte d'Ivoire, encompassing much of the country's central region and supporting agriculture, settlements, and hydropower.
  • D. Kongō
    Kongō was a Japanese Kongō-class fast battleship that served prominently in the Imperial Japanese Navy during World War II.
  • E. 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.
  • 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_69ca8437a7ac81908651de48f2d2141d elicitation completed
NER batch_69cd7e61a114819081fc4a2ad39c96ba ner completed
NED1 batch_69d189e601508190b116fca9854057bc ned_source_triple completed
Created at: March 30, 2026, 7:49 p.m.