Triple
T21831129
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 90 |
E538996
|
entity |
| Predicate | builder |
P3143
|
FINISHED |
| Object | BREL Crewe Works |
—
|
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: BREL Crewe Works | Statement: [British Rail Class 90, builder, BREL Crewe Works]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: BREL Crewe Works Context triple: [British Rail Class 90, builder, BREL Crewe Works]
-
A.
Crewe Works
chosen
Crewe Works is a historic railway engineering and manufacturing facility in Crewe, England, renowned for building and maintaining locomotives and rolling stock since the 19th century.
-
B.
LMS Derby Works
LMS Derby Works was a major British railway engineering and locomotive-building facility in Derby, England, operated by the London, Midland and Scottish Railway and its successors.
-
C.
Doncaster Works
Doncaster Works is a historic British railway engineering and locomotive-building facility in Doncaster, England, long associated with the construction and maintenance of notable steam locomotives.
-
D.
St Rollox Locomotive Works
St Rollox Locomotive Works is a historic railway engineering and locomotive repair facility in Springburn, Glasgow, that played a major role in Scotland’s railway industry.
-
E.
Wolverton Works
Wolverton Works is one of the oldest railway engineering and maintenance facilities in the United Kingdom, historically significant for building and overhauling rolling stock for the national rail network.
- 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_69e0c475cda88190987d08f23caebdc1 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69f091362d9081909f00ad7a2806d5cb |
completed | April 28, 2026, 10:51 a.m. |
Created at: April 16, 2026, 6:55 p.m.