Triple
T22712646
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | West Midlands Trains rolling stock |
E561641
|
entity |
| Predicate | primaryDepot |
P14646
|
FINISHED |
| Object |
Northampton Kings Heath depot
Northampton Kings Heath depot is a railway maintenance and stabling facility in Northampton that services and houses trains operated by West Midlands Trains.
|
E1551145
|
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: Northampton Kings Heath depot | Statement: [West Midlands Trains rolling stock, primaryDepot, Northampton Kings Heath depot]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northampton Kings Heath depot Context triple: [West Midlands Trains rolling stock, primaryDepot, Northampton Kings Heath depot]
-
A.
Northfields depot
Northfields depot is a London Underground maintenance and stabling facility serving trains on the Piccadilly line in west London.
-
B.
Hainault depot
Hainault depot is a major London Underground maintenance and stabling facility serving trains on the Central line in northeast London.
-
C.
Ealing Common Depot
Ealing Common Depot is a London Underground maintenance and stabling facility serving primarily the District line in west London.
-
D.
Queens Road depot
Queens Road depot is a major tram maintenance and operations facility serving the Manchester Metrolink light rail network.
-
E.
Hyde Road depot
Hyde Road depot is a major bus operating and maintenance facility in Manchester used by Stagecoach Manchester for housing and servicing its fleet.
- 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: Northampton Kings Heath depot Triple: [West Midlands Trains rolling stock, primaryDepot, Northampton Kings Heath depot]
Generated description
Northampton Kings Heath depot is a railway maintenance and stabling facility in Northampton that services and houses trains operated by West Midlands Trains.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Northampton Kings Heath depot Target entity description: Northampton Kings Heath depot is a railway maintenance and stabling facility in Northampton that services and houses trains operated by West Midlands Trains.
-
A.
Northfields depot
Northfields depot is a London Underground maintenance and stabling facility serving trains on the Piccadilly line in west London.
-
B.
Hainault depot
Hainault depot is a major London Underground maintenance and stabling facility serving trains on the Central line in northeast London.
-
C.
Ealing Common Depot
Ealing Common Depot is a London Underground maintenance and stabling facility serving primarily the District line in west London.
-
D.
Queens Road depot
Queens Road depot is a major tram maintenance and operations facility serving the Manchester Metrolink light rail network.
-
E.
Hyde Road depot
Hyde Road depot is a major bus operating and maintenance facility in Manchester used by Stagecoach Manchester for housing and servicing its fleet.
- 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_69e2454f1348819088d83f420925a5c1 |
completed | April 17, 2026, 2:35 p.m. |
| NER | Named-entity recognition | batch_69f1790ab6208190a342f076002324ab |
completed | April 29, 2026, 3:20 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0b7edb9a2c8190aefff02fd998edc2 |
completed | May 18, 2026, 9:04 p.m. |
| NEDg | Description generation | batch_6a0b834f488c8190bee40bd1caea0e40 |
completed | May 18, 2026, 9:23 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0b8717b65c819089d29c1802d1ed55 |
completed | May 18, 2026, 9:39 p.m. |
Created at: April 17, 2026, 3:18 p.m.