Triple
T21878647
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Watford Junction railway station |
E540218
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | West Midlands Trains |
—
|
NE NERFINISHED |
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: West Midlands Trains | Statement: [Watford Junction railway station, servedBy, West Midlands Trains]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: West Midlands Trains Context triple: [Watford Junction railway station, servedBy, West Midlands Trains]
-
A.
North West Trains
North West Trains was a British train operating company that ran regional and commuter rail services in North West England following rail privatization in the mid-1990s.
-
B.
Northern Trains
Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
-
C.
West Midlands Rail Executive
West Midlands Rail Executive is a regional public body responsible for overseeing and improving rail services and infrastructure across the West Midlands area of England.
-
D.
West Midlands Railway
chosen
West Midlands Railway is a British train operating company providing regional and commuter rail services across the West Midlands and surrounding areas of England.
-
E.
Northern Rail
Northern Rail is a British train operating company providing regional and commuter rail services across Northern England.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0c479a98081908ce333853fdd4348 |
completed | April 16, 2026, 11:14 a.m. |
| NER | Named-entity recognition | batch_69f118e42c108190b6308016655c429e |
completed | April 28, 2026, 8:30 p.m. |
Created at: April 16, 2026, 7:03 p.m.