Triple

T22594641
Position Surface form Disambiguated ID Type / Status
Subject IJsselmeer water system E574640 entity
Predicate mainInflow P4496 FINISHED
Object IJssel River — NE NERFINISHED

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: IJssel River | Statement: [IJsselmeer water system, mainInflow, IJssel 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: IJssel River
Context triple: [IJsselmeer water system, mainInflow, IJssel River]
  • A. river IJssel chosen
    The river IJssel is a major distributary of the Rhine in the eastern Netherlands, flowing north through the provinces of Gelderland and Overijssel into the IJsselmeer.
  • B. River IJ
    The River IJ is a body of water in the Netherlands that forms Amsterdam’s main waterfront and harbor area, separating the city center from Amsterdam-Noord and connecting to the North Sea Canal.
  • C. River Nederrijn
    The River Nederrijn is a major distributary branch of the Rhine in the Netherlands, flowing through the central part of the country and playing a key role in its inland waterway network.
  • D. Drentsche Aa
    Drentsche Aa is a small, meandering river in the Dutch province of Drenthe, renowned for its well-preserved natural landscape and surrounding national park.
  • E. Hollandsche IJssel
    Hollandsche IJssel is a river in the western Netherlands that flows through the provinces of South Holland and Utrecht and plays a role in regional water management and flood control.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e245bc11308190b69d794d5d1e0bb6 elicitation completed
NER batch_69f16164d690819096f7c4efb6cedad9 ner completed
Created at: April 17, 2026, 2:49 p.m.