Triple

T7394488
Position Surface form Disambiguated ID Type / Status
Subject Howden Reservoir E170587 entity
Predicate partOf P40 FINISHED
Object Upper Derwent Valley reservoirs E492106 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: Upper Derwent Valley reservoirs | Statement: [Howden Reservoir, partOf, Upper Derwent Valley reservoirs]

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: Upper Derwent Valley reservoirs
Context triple: [Howden Reservoir, partOf, Upper Derwent Valley reservoirs]
  • A. Elan Valley reservoirs
    The Elan Valley reservoirs are a series of scenic man-made lakes in mid-Wales, created in the late 19th and early 20th centuries to supply water to Birmingham and now renowned for their dams, wildlife, and outdoor recreation.
  • B. Gryffe Reservoirs
    Gryffe Reservoirs are a pair of man-made water storage lakes in Renfrewshire, Scotland, that serve as an important local water supply and recreational area near the village of Bridge of Weir.
  • C. Upper Derwent Valley chosen
    Upper Derwent Valley is a scenic valley in Derbyshire, England, known for its chain of large reservoirs, surrounding moorland landscapes, and popular outdoor recreation opportunities.
  • D. Upper Devon Reservoir
    Upper Devon Reservoir is a man-made freshwater reservoir in Scotland used primarily for water supply and recreational activities.
  • E. Hinckley Reservoir
    Hinckley Reservoir is a large man-made lake in central New York that serves as a major water supply source and recreational area for the region.
  • 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_69c68a5f04188190ac266569c9280347 elicitation completed
NER batch_69c6f2263b48819089319a2a2f0d3357 ner completed
NED1 batch_69c810fcb1408190a6ed22213bd7830b ned_source_triple completed
Created at: March 27, 2026, 3:09 p.m.