Triple

T16836392
Position Surface form Disambiguated ID Type / Status
Subject Southern Region of British Railways E409292 entity
Predicate successorOf P78 FINISHED
Object Southern Railway E102970 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: Southern Railway | Statement: [Southern Region of British Railways, successorOf, Southern 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: Southern Railway
Context triple: [Southern Region of British Railways, successorOf, Southern Railway]
  • A. Southern Railway
    Southern Railway is a major railway line in Austria that connects Vienna with the southern regions and serves as an important international transit route through the Alps.
  • B. Southern Railway
    Southern Railway is one of the zones of Indian Railways, administering and operating rail services across much of South India, including Tamil Nadu and parts of neighboring states.
  • C. Southern Railway (U.S.)
    Southern Railway (U.S.) was a major American Class I railroad that operated primarily in the southeastern United States before becoming a key predecessor of Norfolk Southern Railway.
  • D. Southern Railway (UK) chosen
    Southern Railway (UK) was a major British railway company formed in 1923 that operated routes in southern England, including busy commuter and coastal lines, until nationalisation in 1948.
  • E. Canada Southern Railway
    Canada Southern Railway was a 19th- and early 20th-century railway company that operated a key east–west main line across southern Ontario, providing an important international link between the U.S. and Canada.
  • 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_69d883952b048190887740a980b712ed elicitation completed
NER batch_69e3b34d49d08190aa62f05d67244584 ner completed
NED1 batch_6a00bb15c9f48190a4d73bb08a15beb4 ned_source_triple completed
Created at: April 10, 2026, 5:23 a.m.