Triple

T10596118
Position Surface form Disambiguated ID Type / Status
Subject Windsor Lines E250115 entity
Predicate primaryTerminusInLondon P24452 FINISHED
Object London Waterloo E50670 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: London Waterloo | Statement: [Windsor Lines, primaryTerminusInLondon, London Waterloo]

Disambiguation candidates (2 decisions)

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: London Waterloo
Context triple: [Windsor Lines, primaryTerminusInLondon, London Waterloo]
  • A. London Waterloo East
    London Waterloo East is a central London railway station serving suburban and regional services, located near Waterloo and connected by footbridge to the main Waterloo station complex.
  • B. London Waterloo railway station chosen
    London Waterloo railway station is a major central London terminus and one of the busiest railway stations in the United Kingdom, serving as a key hub for suburban and long-distance services in the south of England.
  • C. London Paddington
    London Paddington is a major central London railway terminus and transport hub, best known as the historic Great Western Railway terminus and a key gateway to western England and Heathrow Airport.
  • D. London Victoria
    London Victoria is a major central London railway terminus and Underground station, serving as a key hub for commuter, regional, and Gatwick Airport services.
  • E. London Victoria railway station
    London Victoria railway station is one of London's busiest central railway termini and transport hubs, serving both mainline and Underground services as a key gateway to the south of England and Gatwick Airport.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: primaryTerminusInLondon
Context triple: [Windsor Lines, primaryTerminusInLondon, London Waterloo]
  • A. primaryLondonTerminal chosen
    Indicates that a given station serves as the main London terminal for a particular rail service or route.
  • B. secondaryLondonTerminal
    Indicates that a location serves as a secondary terminal in London associated with a primary London terminal for a given service or route.
  • C. servesCentralLondon
    Indicates that something provides service or access specifically to the Central London area.
  • D. primaryPortInEngland
    Indicates that the referenced port serves as the main or principal port located within England for the associated entity.
  • E. primaryManchesterStation
    Indicates that a given station is the main or principal railway station serving Manchester.
  • F. None of above.

Provenance (4 batches)

Stage Batch ID Job type Status
creating batch_69d381c9d3d48190a29ee491e1696a0e elicitation completed
NER batch_69d5278dacc4819089b759744f100e5f ner completed
NED1 batch_69d98838c9b88190b12d8873695e219e ned_source_triple completed
PD batch_69d5190a6dfc819088262957551808a1 pd completed
Created at: April 6, 2026, 12:41 p.m.