Triple

T9525618
Position Surface form Disambiguated ID Type / Status
Subject Ruhrverband E229752 entity
Predicate manages P86 FINISHED
Object Möhne Reservoir E44569 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: Möhne Reservoir | Statement: [Ruhrverband, manages, Möhne Reservoir]

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: Möhne Reservoir
Context triple: [Ruhrverband, manages, Möhne Reservoir]
  • A. Möhne Dam chosen
    Möhne Dam is a major German gravity dam in North Rhine-Westphalia, historically known for being breached by the RAF’s “Dambusters” raid during World War II.
  • B. Ruhr reservoir system
    The Ruhr reservoir system is an interconnected network of dams and reservoirs in Germany’s Ruhr region that regulates water supply, flood control, and power generation for one of the country’s most industrialized areas.
  • C. Edersee
    Edersee is a large artificial reservoir in northern Hesse, Germany, created by the Eder Dam and known for recreation, water sports, and its scenic surroundings.
  • D. Schluchsee Dam
    Schluchsee Dam is a hydroelectric and water regulation dam in Germany’s Black Forest that creates the Schluchsee reservoir, a major regional lake and recreation area.
  • E. Sorpe Dam
    The Sorpe Dam is a German earth-fill dam in the Ruhr region that was a key target of the RAF’s World War II “Dambusters” raid, Operation Chastise.
  • 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_69ca847870a881909d8d751a7d29da39 elicitation completed
NER batch_69cd989b529c81909ee18dd3d468c816 ner completed
NED1 batch_69d1612f86ac8190a19a2d17b25c08e6 ned_source_triple completed
Created at: March 30, 2026, 7:59 p.m.