Triple
T6488194
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 172 |
E146566
|
entity |
| Predicate | builder |
P3143
|
FINISHED |
| Object |
Bombardier Transportation Derby Litchurch Lane Works
Bombardier Transportation Derby Litchurch Lane Works is a major British train manufacturing and assembly plant in Derby known for producing multiple generations of passenger rolling stock for the UK rail network.
|
E595719
|
NE FINISHED |
How this triple was built (4 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: Bombardier Transportation Derby Litchurch Lane Works | Statement: [British Rail Class 172, builder, Bombardier Transportation Derby Litchurch Lane Works]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Bombardier Transportation Derby Litchurch Lane Works Context triple: [British Rail Class 172, builder, Bombardier Transportation Derby Litchurch Lane Works]
-
A.
Alstom Washwood Heath
Alstom Washwood Heath was a major train manufacturing and maintenance facility in Birmingham, England, known for producing high-speed and electric multiple unit trains for the UK rail network.
-
B.
Bombardier Cityrunner trams
Bombardier Cityrunner trams are a family of low-floor, modern light rail vehicles designed for urban public transport systems in various cities worldwide.
-
C.
Railway Technical Centre
The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
-
D.
York Carriage Works
York Carriage Works was a major railway rolling stock manufacturing and maintenance facility in York, England, historically significant for building and servicing trains for the British rail network.
-
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. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Bombardier Transportation Derby Litchurch Lane Works Triple: [British Rail Class 172, builder, Bombardier Transportation Derby Litchurch Lane Works]
Generated description
Bombardier Transportation Derby Litchurch Lane Works is a major British train manufacturing and assembly plant in Derby known for producing multiple generations of passenger rolling stock for the UK rail network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Bombardier Transportation Derby Litchurch Lane Works Target entity description: Bombardier Transportation Derby Litchurch Lane Works is a major British train manufacturing and assembly plant in Derby known for producing multiple generations of passenger rolling stock for the UK rail network.
-
A.
Alstom Washwood Heath
Alstom Washwood Heath was a major train manufacturing and maintenance facility in Birmingham, England, known for producing high-speed and electric multiple unit trains for the UK rail network.
-
B.
Bombardier Cityrunner trams
Bombardier Cityrunner trams are a family of low-floor, modern light rail vehicles designed for urban public transport systems in various cities worldwide.
-
C.
Railway Technical Centre
The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
-
D.
York Carriage Works
York Carriage Works was a major railway rolling stock manufacturing and maintenance facility in York, England, historically significant for building and servicing trains for the British rail network.
-
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. chosen
Provenance (5 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_69c0090158c08190af0df9a2348d2d52 |
completed | March 22, 2026, 3:21 p.m. |
| NER | Named-entity recognition | batch_69c06a97fff88190b6f993c14df62649 |
completed | March 22, 2026, 10:18 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c653b792f48190b301cdc643db8ddf |
completed | March 27, 2026, 9:53 a.m. |
| NEDg | Description generation | batch_69c6545575788190acb374fcdb7f5edf |
completed | March 27, 2026, 9:56 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c654c0cdf88190994217223fb2f77a |
completed | March 27, 2026, 9:58 a.m. |
Created at: March 22, 2026, 4:52 p.m.