Triple

T5668418
Position Surface form Disambiguated ID Type / Status
Subject Olyokma River E124912 entity
Predicate partOf P40 FINISHED
Object Lena River basin 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 basin | Statement: [Olyokma River, partOf, Lena 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: Lena River basin
Context triple: [Olyokma River, partOf, Lena River basin]
  • A. Kolyma River basin
    The Kolyma River basin is a vast, sparsely populated watershed in northeastern Siberia that drains into the Arctic Ocean and is known for its extreme cold, permafrost landscapes, and historical association with Soviet-era labor camps.
  • B. 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.
  • C. Taimyr River basin
    The Taimyr River basin is a remote Arctic watershed in northern Siberia that drains the Taimyr Peninsula into the Arctic Ocean and supports tundra ecosystems and permafrost landscapes.
  • D. Bolshaya Kaksha River
    The Bolshaya Kaksha River is a lesser-known Russian watercourse that serves as a tributary within the Vetluga River basin.
  • E. 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.
  • 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_69c00828906881908966f270b8f130cf elicitation completed
NER batch_69c023471f688190acec330596238a50 ner completed
NED1 batch_69c0b0a7aff08190bca93ac0ab8a9be0 ned_source_triple completed
Created at: March 22, 2026, 3:43 p.m.