Triple

T7797516
Position Surface form Disambiguated ID Type / Status
Subject Buotama River E180336 entity
Predicate mouth P407 FINISHED
Object Lena River E17170 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: Lena River | Statement: [Buotama River, mouth, Lena River]

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: Lena River
Context triple: [Buotama River, mouth, Lena River]
  • A. Lena River chosen
    The Lena River is one of the longest rivers in the world, flowing through Siberia in northeastern Russia to the Arctic Ocean.
  • B. Velikaya River
    The Velikaya River is a major waterway in northwestern Russia that flows through Pskov Oblast into Lake Peipus, historically serving as an important trade and strategic route.
  • C. Bolshaya Urta River
    The Bolshaya Urta River is a smaller watercourse in Russia that serves as one of the tributaries feeding into the Samara River system.
  • D. Angara River
    The Angara River is a major river in Siberia that flows northward from Lake Baikal through Irkutsk Oblast before joining the Yenisei River.
  • E. Abakan River
    The Abakan River is a significant river in southern Siberia, Russia, flowing through the Republic of Khakassia and known for its role in regional transport, fishing, and hydropower.
  • 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_69ca827d22208190b4dc5aa680edcf5d elicitation completed
NER batch_69cae982c3b48190a35afe655fb20d55 ner completed
NED1 batch_69cc55d5650c8190862d89d1dcc488b4 ned_source_triple completed
Created at: March 30, 2026, 4:32 p.m.