Triple

T9631144
Position Surface form Disambiguated ID Type / Status
Subject Dams Raid 1943 E232804 entity
Predicate trainingLocation P40 FINISHED
Object Derwent Reservoir E116312 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: Derwent Reservoir | Statement: [Dams Raid 1943, trainingLocation, Derwent 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: Derwent Reservoir
Context triple: [Dams Raid 1943, trainingLocation, Derwent Reservoir]
  • A. Derwent Reservoir chosen
    Derwent Reservoir is a large man-made lake in Derbyshire, England, best known for its scenic surroundings in the Peak District and its historical association with the World War II "Dambusters" training flights.
  • B. Keswick Reservoir
    Keswick Reservoir is a man-made lake on the Sacramento River in Northern California, primarily serving as a regulating reservoir for Shasta Dam’s hydroelectric operations and regional water management.
  • C. Ladybower Reservoir
    Ladybower Reservoir is a large Y-shaped drinking-water reservoir in the Upper Derwent Valley of Derbyshire, England, known for its distinctive plughole spillways and surrounding Peak District scenery.
  • D. Shade’s Mills Reservoir
    Shade’s Mills Reservoir is a man-made lake in Cambridge, Ontario, used for recreation, wildlife habitat, and flood control within the surrounding conservation area.
  • E. Gouthwaite Reservoir
    Gouthwaite Reservoir is a large man-made lake in Nidderdale, North Yorkshire, England, known for its role in water supply, flood control, and as a wildlife-rich nature reserve.
  • 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_69ca848940cc8190b97cec654cb3bb4a elicitation completed
NER batch_69cd9b2621408190bfe2ea5a05359ee0 ner completed
NED1 batch_69d19f66dba08190bf8b76cf7a248746 ned_source_triple completed
Created at: March 30, 2026, 8:11 p.m.