Triple

T10112318
Position Surface form Disambiguated ID Type / Status
Subject Belfast–Derry railway line E218269 entity
Predicate operator P179 FINISHED
Object Northern Ireland Railways E400040 NE FINISHED

How this triple was built (2 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
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: Northern Ireland Railways | Statement: [Belfast–Derry railway line, operator, Northern Ireland Railways]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Northern Ireland Railways
Context triple: [Belfast–Derry railway line, operator, Northern Ireland Railways]
  • A. Northern Ireland railways chosen
    Northern Ireland railways comprise the network of passenger and freight railway lines operating within Northern Ireland, historically distinct from the rest of the UK system and now primarily managed by Translink’s NI Railways.
  • B. Great Northern Railway (Ireland)
    Great Northern Railway (Ireland) was a major cross-border railway company that operated key lines connecting cities in both Northern Ireland and the Republic of Ireland from the late 19th to the mid-20th century.
  • C. Great Western Railway (Ireland)
    Great Western Railway (Ireland) was a former Irish railway company that operated key routes in the west of Ireland during the 19th and early 20th centuries.
  • D. Iarnród Éireann
    Iarnród Éireann is the national railway operator of Ireland, responsible for most passenger and freight rail services across the country.
  • E. Ulster Transport Authority
    The Ulster Transport Authority was a government-owned body responsible for operating and overseeing public transport services, including railways and buses, in Northern Ireland from the late 1940s until the late 1960s.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69ca83da93fc8190b54e44bc2b34857c completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69cdd15d1fd081908c6f6b021e3999da completed April 2, 2026, 2:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69d2cc20ff4481909cdd916e92eda2f6 completed April 5, 2026, 8:54 p.m.
Created at: March 30, 2026, 9:03 p.m.