Triple
T7056137
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cathays railway station |
E164094
|
entity |
| Predicate | hasOperatorHistory |
P28596
|
FINISHED |
| Object | British Rail (original operator) |
E15757
|
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: British Rail (original operator) | Statement: [Cathays railway station, hasOperatorHistory, British Rail (original operator)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Rail (original operator) Context triple: [Cathays railway station, hasOperatorHistory, British Rail (original operator)]
-
A.
British Rail
chosen
British Rail was the state-owned company that operated most of the railway services in Great Britain from the late 1940s until the privatization of the rail network in the 1990s.
-
B.
Northern Rail
Northern Rail is a British train operating company providing regional and commuter rail services across Northern England.
-
C.
Northern Trains
Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
-
D.
British Rail Provincial sector
The British Rail Provincial sector was the division of British Rail responsible for operating most non-intercity and rural passenger train services across the United Kingdom before sectorisation reforms led to its rebranding as Regional Railways.
-
E.
London North Eastern Railway
London North Eastern Railway is a British train operating company that runs long-distance passenger services on the East Coast Main Line between London and destinations in northern England and Scotland.
- 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_69c68861678881909961ddf4d779f750 |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6e269050c81908c186609a8a7bcf9 |
completed | March 27, 2026, 8:02 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c788a303148190869be2a455d28791 |
completed | March 28, 2026, 7:52 a.m. |
Created at: March 27, 2026, 2:38 p.m.