Triple

T10682833
Position Surface form Disambiguated ID Type / Status
Subject Nottingham–Lincoln line E251798 entity
Predicate operator P179 FINISHED
Object East Midlands Railway E21789 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: East Midlands Railway | Statement: [Nottingham–Lincoln line, operator, East Midlands Railway]

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: East Midlands Railway
Context triple: [Nottingham–Lincoln line, operator, East Midlands Railway]
  • A. East Midlands Railway chosen
    East Midlands Railway is a British train operating company providing regional and intercity passenger rail services across the East Midlands and surrounding areas.
  • B. West Midlands Railway
    West Midlands Railway is a British train operating company providing regional and commuter rail services across the West Midlands and surrounding areas of England.
  • C. North Midland Railway
    The North Midland Railway was an early 19th-century British railway company that operated a key main line in the Midlands, later becoming part of the Midland Railway.
  • D. North Staffordshire Railway
    The North Staffordshire Railway was a historic British railway company serving the Staffordshire region, particularly around Stoke-on-Trent and the Potteries, before being absorbed into larger railway groupings.
  • E. Manchester, Sheffield and Lincolnshire Railway
    The Manchester, Sheffield and Lincolnshire Railway was a 19th-century British railway company that operated lines across northern England and later evolved into the Great Central Railway.
  • 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_69d6aa5bd7c08190a816e733b4045c23 elicitation completed
NER batch_69d6fcc43b9481908f35490db93db76c ner completed
NED1 batch_69d9888cf7b481909de6a4fecb48cf4b ned_source_triple completed
Created at: April 8, 2026, 9:10 p.m.