Triple

T5429836
Position Surface form Disambiguated ID Type / Status
Subject Southampton Central E121455 entity
Predicate onRailwayLine P848 FINISHED
Object Wessex Main Line E194888 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: Wessex Main Line | Statement: [Southampton Central, onRailwayLine, Wessex 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: Wessex Main Line
Context triple: [Southampton Central, onRailwayLine, Wessex Main Line]
  • A. Wessex Main Line chosen
    The Wessex Main Line is a key railway route in southern England linking Bristol and Bath with Salisbury and Southampton, serving as an important regional passenger corridor.
  • B. Waterloo to Bournemouth and Weymouth line
    The Waterloo to Bournemouth and Weymouth line is a major south-western English railway route linking London Waterloo with the coastal towns of Bournemouth and Weymouth.
  • C. West Anglia Main Line
    The West Anglia Main Line is a major railway route in eastern England that connects London with Cambridge and other destinations in the East of England.
  • D. West of England Main Line
    The West of England Main Line is a major railway route in southwest England that connects London with Exeter and passes through several counties including Somerset.
  • E. Chiltern Main Line
    The Chiltern Main Line is a major railway route in England connecting London Marylebone with the West Midlands via key towns such as High Wycombe, Banbury, and Leamington Spa.
  • 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_69bd463c65f0819082ee6483ab4b466a elicitation completed
NER batch_69bd883d1bfc8190859bb05cfab065c8 ner completed
NED1 batch_69bf3ac6285081909afa6e91a023f6d5 ned_source_triple completed
Created at: March 20, 2026, 2:06 p.m.