Triple

T15130347
Position Surface form Disambiguated ID Type / Status
Subject Berkhamsted railway station E361401 entity
Predicate line P1293 FINISHED
Object West Coast Main Line E22659 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: West Coast Main Line | Statement: [Berkhamsted railway station, line, West Coast Main Line]

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: West Coast Main Line
Context triple: [Berkhamsted railway station, line, West Coast Main Line]
  • A. West Coast Main Line chosen
    The West Coast Main Line is one of the United Kingdom’s primary intercity railway routes, linking London with major cities such as Birmingham, Manchester, Liverpool, and Glasgow.
  • B. West Coast line
    The West Coast line is a major railway corridor in western Taiwan that connects key cities along the island’s western plains.
  • C. East Coast Main Line
    The East Coast Main Line is a major high-speed railway route in the United Kingdom that runs between London and Edinburgh, serving numerous key cities and regions along the east side of the country.
  • D. West Coastway Line
    The West Coastway Line is a major railway route in southern England that runs along the south coast, linking cities such as Brighton, Worthing, Chichester, and Portsmouth.
  • E. The Brighton Line
    The Brighton Line is a historic and heavily used railway route in southern England linking London with the seaside city of Brighton.
  • 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_69d85a06450081909c5a14ea9851a15e elicitation completed
NER batch_69e005b194748190801e3956bf2429d4 ner completed
NED1 batch_69fec87ed2cc8190b4cae72774e0df7f ned_source_triple completed
Created at: April 10, 2026, 3:06 a.m.