Triple
T21269481
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 158 |
E524216
|
entity |
| Predicate | builtAt |
P283
|
FINISHED |
| Object | Derby Litchurch Lane 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: Derby Litchurch Lane Works | Statement: [British Rail Class 158, builtAt, Derby Litchurch Lane Works]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Derby Litchurch Lane Works Context triple: [British Rail Class 158, builtAt, Derby Litchurch Lane Works]
-
A.
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.
-
B.
Derby railway works
chosen
Derby railway works is a historic British railway engineering and manufacturing complex in Derby that played a major role in the development and maintenance of locomotives and rolling stock.
-
C.
Eastleigh Works
Eastleigh Works is a major railway engineering and maintenance facility in Eastleigh, England, historically known for building, repairing, and overhauling locomotives and rolling stock.
-
D.
Crewe Works
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.
-
E.
Swindon Works
Swindon Works was a major railway engineering and locomotive manufacturing facility of the Great Western Railway in Swindon, 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_69e0b5156d7881909bd4f83676590715 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e73651115081908b5083ba818a6bb1 |
completed | April 21, 2026, 8:33 a.m. |
Created at: April 16, 2026, 4:01 p.m.