Triple

T4499345
Position Surface form Disambiguated ID Type / Status
Subject Sefid-Rud E101179 entity
Predicate hasBasin P5506 FINISHED
Object Sefid-Rud basin E101179 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: Sefid-Rud basin | Statement: [Sefid-Rud, hasBasin, Sefid-Rud 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: Sefid-Rud basin
Context triple: [Sefid-Rud, hasBasin, Sefid-Rud basin]
  • A. Sefid-Rud chosen
    Sefid-Rud is a major river in northern Iran that flows through the Alborz Mountains and into the Caspian Sea, playing a key role in regional agriculture and hydropower.
  • B. Zayandeh River
    The Zayandeh River is a major river in central Iran that flows through the city of Isfahan, historically supporting its agriculture, architecture, and famous bridges.
  • C. Abadan
    Abadan is a port city in southwestern Iran, located on an island near the Persian Gulf and known for its major oil refinery and strategic position along the Shatt al-Arab waterway.
  • D. Karkheh River
    The Karkheh River is a major waterway in western Iran that flows through the Khuzestan plain and supports extensive agriculture and settlements before emptying into the Mesopotamian lowlands.
  • E. Qom River
    The Qom River is a significant river in central Iran that flows through the city of Qom and contributes to the region’s agriculture and water supply.
  • 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_69bd43d175248190894dc58b5b395c26 elicitation completed
NER batch_69bd56c29868819097633c7cd398e865 ner completed
NED1 batch_69bda41dd58081908b8d8779a71f3c97 ned_source_triple completed
Created at: March 20, 2026, 1 p.m.