Triple
T1339017
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Great Western Railway |
E28420
|
entity |
| Predicate | fleetIncludes |
P10916
|
FINISHED |
| Object |
Class 387 train
The Class 387 train is a modern British electric multiple unit used for high-frequency commuter and regional services, known for its air-conditioned interiors and improved passenger comfort.
|
E162218
|
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: Class 387 train | Statement: [Great Western Railway, fleetIncludes, Class 387 train]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Class 387 train Context triple: [Great Western Railway, fleetIncludes, Class 387 train]
-
A.
Class 166 train
The Class 166 train is a British diesel multiple unit used primarily for regional and commuter services, notably in the Great Western Railway network.
-
B.
Class 165 train
The Class 165 train is a British diesel multiple unit used primarily for suburban and regional passenger services, notably around the Thames Valley and Chiltern routes.
-
C.
Class 397 Civity EMU
The Class 397 Civity EMU is a modern high-speed electric multiple unit built by CAF for intercity services in the UK, notably on routes linking north of England cities with Scotland.
-
D.
Class 756 train
The Class 756 train is a modern tri-mode (electric, battery, and diesel) multiple unit designed for regional and commuter services in Wales as part of Transport for Wales Rail’s fleet modernization.
-
E.
Class 150 train
The Class 150 train is a British diesel multiple unit introduced in the 1980s for regional and commuter services, widely used across the UK 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: Class 387 train Triple: [Great Western Railway, fleetIncludes, Class 387 train]
Generated description
The Class 387 train is a modern British electric multiple unit used for high-frequency commuter and regional services, known for its air-conditioned interiors and improved passenger comfort.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Class 387 train Target entity description: The Class 387 train is a modern British electric multiple unit used for high-frequency commuter and regional services, known for its air-conditioned interiors and improved passenger comfort.
-
A.
Class 166 train
The Class 166 train is a British diesel multiple unit used primarily for regional and commuter services, notably in the Great Western Railway network.
-
B.
Class 165 train
The Class 165 train is a British diesel multiple unit used primarily for suburban and regional passenger services, notably around the Thames Valley and Chiltern routes.
-
C.
Class 397 Civity EMU
The Class 397 Civity EMU is a modern high-speed electric multiple unit built by CAF for intercity services in the UK, notably on routes linking north of England cities with Scotland.
-
D.
Class 756 train
The Class 756 train is a modern tri-mode (electric, battery, and diesel) multiple unit designed for regional and commuter services in Wales as part of Transport for Wales Rail’s fleet modernization.
-
E.
Class 150 train
The Class 150 train is a British diesel multiple unit introduced in the 1980s for regional and commuter services, widely used across the UK 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_69a49854eb3481908c7d56b2e449a290 |
completed | March 1, 2026, 7:49 p.m. |
| NER | Named-entity recognition | batch_69a4c21303c881908fef0b32831222fe |
completed | March 1, 2026, 10:47 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ace56298708190819518926b2b608f |
completed | March 8, 2026, 2:56 a.m. |
| NEDg | Description generation | batch_69ace639296881909dc3fe52720d120d |
completed | March 8, 2026, 3 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ace7730cf08190a4e0329be205da3f |
completed | March 8, 2026, 3:05 a.m. |
Created at: March 1, 2026, 7:56 p.m.