Triple
T9662935
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Birmingham New Street to Liverpool Lime Street |
E233630
|
entity |
| Predicate | servedByTrainClass |
P56947
|
FINISHED |
| Object |
British Rail Class 350
The British Rail Class 350 is a family of electric multiple-unit passenger trains used for regional and intercity services on the UK rail network.
|
E813927
|
NE FINISHED |
How this triple was built (5 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: British Rail Class 350 | Statement: [Birmingham New Street to Liverpool Lime Street, servedByTrainClass, British Rail Class 350]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Rail Class 350 Context triple: [Birmingham New Street to Liverpool Lime Street, servedByTrainClass, British Rail Class 350]
-
A.
British Rail Class 390
The British Rail Class 390 is a high-speed tilting electric multiple unit train used by Avanti West Coast on the West Coast Main Line in the United Kingdom.
-
B.
British Rail Class 360/1
The British Rail Class 360/1 is a subseries of electric multiple-unit commuter trains used in the UK, primarily designed for outer-suburban and airport services.
-
C.
British Rail Class 450
The British Rail Class 450 is a fleet of electric multiple unit commuter trains operated in southern England, particularly on suburban and regional services.
-
D.
British Rail Class 375
The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
-
E.
British Rail Class 175
The British Rail Class 175 is a diesel multiple-unit passenger train used on regional and intercity services in the United Kingdom, particularly across Wales and bordering regions.
- 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: British Rail Class 350 Triple: [Birmingham New Street to Liverpool Lime Street, servedByTrainClass, British Rail Class 350]
Generated description
The British Rail Class 350 is a family of electric multiple-unit passenger trains used for regional and intercity services on the UK rail network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: British Rail Class 350 Target entity description: The British Rail Class 350 is a family of electric multiple-unit passenger trains used for regional and intercity services on the UK rail network.
-
A.
British Rail Class 390
The British Rail Class 390 is a high-speed tilting electric multiple unit train used by Avanti West Coast on the West Coast Main Line in the United Kingdom.
-
B.
British Rail Class 360/1
The British Rail Class 360/1 is a subseries of electric multiple-unit commuter trains used in the UK, primarily designed for outer-suburban and airport services.
-
C.
British Rail Class 450
The British Rail Class 450 is a fleet of electric multiple unit commuter trains operated in southern England, particularly on suburban and regional services.
-
D.
British Rail Class 375
The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
-
E.
British Rail Class 175
The British Rail Class 175 is a diesel multiple-unit passenger train used on regional and intercity services in the United Kingdom, particularly across Wales and bordering regions.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: servedByTrainClass Context triple: [Birmingham New Street to Liverpool Lime Street, servedByTrainClass, British Rail Class 350]
-
A.
trainTypeUsed
chosen
Indicates that a specific type or category of train is employed or operated in a given context or service.
-
B.
railwayTypeServed
Indicates the type of railway system or service that a given entity (such as a station, line, or facility) is designed to serve or accommodate.
-
C.
servedByRailroad
Indicates that a location or facility is provided with transportation or service by a railroad line or company.
-
D.
seatClass
Indicates the travel or seating category assigned to a passenger or seat (e.g., economy, business, first class).
-
E.
railServiceType
Indicates the specific category or type of rail service that applies to the relationship between the involved entities (e.g., local, express, freight).
- F. None of above.
Provenance (6 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_69ca848d3b6c8190ae98ea554dea58df |
completed | March 30, 2026, 2:11 p.m. |
| NER | Named-entity recognition | batch_69cd9c0cde048190b5a8e1548825d4d9 |
completed | April 1, 2026, 10:28 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d18a1422348190967943b0d4da8efd |
completed | April 4, 2026, 10 p.m. |
| NEDg | Description generation | batch_69d18b66e79881909228aa3e1e34af26 |
completed | April 4, 2026, 10:06 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69d18bbfb1808190bd7f7ff4326af72c |
completed | April 4, 2026, 10:07 p.m. |
| PD | Predicate disambiguation | batch_69ccd5b3239c8190b3ae3b9bd121e4bd |
completed | April 1, 2026, 8:22 a.m. |
Created at: March 30, 2026, 8:14 p.m.