Triple
T18258752
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | ScotRail Dundee–Aberdeen services |
E437288
|
entity |
| Predicate | typicalRollingStock |
P5426
|
FINISHED |
| Object | Class 158 Express Sprinter |
—
|
NE NERFINISHED |
How this triple was built (2 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 158 Express Sprinter | Statement: [ScotRail Dundee–Aberdeen services, typicalRollingStock, Class 158 Express Sprinter]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Class 158 Express Sprinter Context triple: [ScotRail Dundee–Aberdeen services, typicalRollingStock, Class 158 Express Sprinter]
-
A.
Class 158 Express Sprinter
chosen
The Class 158 Express Sprinter is a British diesel multiple-unit train introduced in the late 1980s for regional and intercity services, known for its improved comfort and performance over earlier Sprinter units.
-
B.
Class 156 Super Sprinter
The Class 156 Super Sprinter is a British two-car diesel multiple unit train built in the late 1980s for regional and local passenger services across the UK rail network.
-
C.
Class 158 diesel multiple unit
The Class 158 diesel multiple unit is a British regional passenger train built in the late 1980s and early 1990s, known for its air-conditioned interiors and use on longer-distance services across the UK rail network.
-
D.
Class 156 diesel multiple unit
The Class 156 diesel multiple unit is a British two-car regional train type introduced in the late 1980s for local and medium-distance passenger services.
-
E.
Class 345 Aventra
The Class 345 Aventra is a modern electric multiple unit train built by Bombardier (now Alstom) for high-capacity, high-frequency commuter services on London’s Elizabeth line.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8b913351c8190932b6a426de04b41 |
completed | April 10, 2026, 8:47 a.m. |
| NER | Named-entity recognition | batch_69e4fd8879e88190893f8da7c3529496 |
completed | April 19, 2026, 4:06 p.m. |
Created at: April 10, 2026, 10:34 a.m.