Triple

T14094557
Position Surface form Disambiguated ID Type / Status
Subject Ust-Kut region (approximate) E339218 entity
Predicate locatedOnRiver P165 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: [Ust-Kut region (approximate), locatedOnRiver, 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: [Ust-Kut region (approximate), locatedOnRiver, 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. Irkut River
    The Irkut River is a Siberian river in Russia that flows through the Irkutsk Oblast and the city of Irkutsk before joining the Angara River.
  • D. 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.
  • E. 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.
  • 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_69d81c69b5c8819094aa1abf18302908 elicitation completed
NER batch_69de5fb7fb3c819083266dbe7e93aaff ner completed
NED1 batch_6a0035428e608190b8bb41dabda044d1 ned_source_triple completed
Created at: April 9, 2026, 10:22 p.m.