Triple

T15261059
Position Surface form Disambiguated ID Type / Status
Subject Master Minded E364774 entity
Predicate notableRacecourse P16266 FINISHED
Object Cheltenham Racecourse E222964 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: Cheltenham Racecourse | Statement: [Master Minded, notableRacecourse, Cheltenham Racecourse]

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: Cheltenham Racecourse
Context triple: [Master Minded, notableRacecourse, Cheltenham Racecourse]
  • A. Cheltenham Racecourse chosen
    Cheltenham Racecourse is a premier British horse racing venue in Gloucestershire, best known for hosting the prestigious Cheltenham Festival and its flagship Cheltenham Gold Cup steeplechase.
  • B. Chester Racecourse
    Chester Racecourse is a historic English horse racing venue in Chester, Cheshire, reputed to be the oldest racecourse still in operation in the world.
  • C. Epsom Downs Racecourse
    Epsom Downs Racecourse is a historic English horse racing venue best known as the home of the Epsom Derby, one of the world’s most prestigious flat races.
  • D. Carlisle Racecourse
    Carlisle Racecourse is a British horse racing venue in Cumbria known for hosting both flat and National Hunt races, including the historic Carlisle Bell.
  • E. Brighton Racecourse
    Brighton Racecourse is a historic horse racing venue located on the outskirts of Brighton, England, known for its unique undulating track and coastal views.
  • 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_69d85a0f08408190b3c3259ae35d79d2 elicitation completed
NER batch_69e0084e85a08190b8e63598b9f6a535 ner completed
NED1 batch_69ff01e092408190aec1561e78ea0acb ned_source_triple completed
Created at: April 10, 2026, 3:14 a.m.