Triple
T12314787
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 345 |
E293571
|
entity |
| Predicate | depot |
P14646
|
FINISHED |
| Object |
Old Oak Common depot
Old Oak Common depot is a major railway maintenance and stabling facility in West London, historically serving Great Western routes and now used for modern commuter fleets such as the Class 345.
|
E976521
|
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: Old Oak Common depot | Statement: [British Rail Class 345, depot, Old Oak Common depot]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Old Oak Common depot Context triple: [British Rail Class 345, depot, Old Oak Common depot]
-
A.
Ealing Common Depot
Ealing Common Depot is a London Underground maintenance and stabling facility serving primarily the District line in west London.
-
B.
Cricklewood depot
Cricklewood depot is a railway maintenance and stabling facility in the Cricklewood area of north-west London, serving trains on the Midland Main Line and surrounding routes.
-
C.
Northfields depot
Northfields depot is a London Underground maintenance and stabling facility serving trains on the Piccadilly line in west London.
-
D.
Neasden Depot
Neasden Depot is a major London Underground maintenance and stabling facility serving trains on the Metropolitan line.
-
E.
Queen's Park depot
Queen's Park depot is a London Underground maintenance and stabling facility associated with the Bakerloo line near Queen's Park in northwest London.
- 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: Old Oak Common depot Triple: [British Rail Class 345, depot, Old Oak Common depot]
Generated description
Old Oak Common depot is a major railway maintenance and stabling facility in West London, historically serving Great Western routes and now used for modern commuter fleets such as the Class 345.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Old Oak Common depot Target entity description: Old Oak Common depot is a major railway maintenance and stabling facility in West London, historically serving Great Western routes and now used for modern commuter fleets such as the Class 345.
-
A.
Ealing Common Depot
Ealing Common Depot is a London Underground maintenance and stabling facility serving primarily the District line in west London.
-
B.
Cricklewood depot
Cricklewood depot is a railway maintenance and stabling facility in the Cricklewood area of north-west London, serving trains on the Midland Main Line and surrounding routes.
-
C.
Northfields depot
Northfields depot is a London Underground maintenance and stabling facility serving trains on the Piccadilly line in west London.
-
D.
Neasden Depot
Neasden Depot is a major London Underground maintenance and stabling facility serving trains on the Metropolitan line.
-
E.
Queen's Park depot
Queen's Park depot is a London Underground maintenance and stabling facility associated with the Bakerloo line near Queen's Park in northwest London.
- 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_69d6ab6a2b50819082f6aedd32ed608a |
completed | April 8, 2026, 7:24 p.m. |
| NER | Named-entity recognition | batch_69d93f05186481909c024a933b4f6c60 |
completed | April 10, 2026, 6:18 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f61e86d45881909a9a3c09df0b78f1 |
completed | May 2, 2026, 3:55 p.m. |
| NEDg | Description generation | batch_69f622a646c481908164ae5387625bb4 |
completed | May 2, 2026, 4:13 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f623f5aa608190bce3e62e08077216 |
completed | May 2, 2026, 4:19 p.m. |
Created at: April 8, 2026, 9:53 p.m.