Triple
T6594309
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Edinburgh–Borders Railway |
E148437
|
entity |
| Predicate | primaryRollingStock |
P1305
|
FINISHED |
| Object |
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.
|
E607902
|
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 158 diesel multiple unit | Statement: [Edinburgh–Borders Railway, primaryRollingStock, Class 158 diesel multiple unit]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Class 158 diesel multiple unit Context triple: [Edinburgh–Borders Railway, primaryRollingStock, Class 158 diesel multiple unit]
-
A.
Class 153 diesel multiple unit
The Class 153 diesel multiple unit is a single-car British regional train used primarily for local and rural passenger services on non-electrified lines.
-
B.
Class 150 diesel multiple unit
The Class 150 diesel multiple unit is a British two- or three-car regional passenger train introduced in the 1980s and widely used on local and suburban services across the UK rail network.
-
C.
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.
-
D.
Class 170 diesel multiple unit
The Class 170 diesel multiple unit is a British Turbostar family regional train used extensively for passenger services across the UK rail network.
-
E.
Class 385 electric multiple units
The Class 385 electric multiple units are modern electric commuter trains used by ScotRail, primarily operating on electrified routes in Scotland’s Central Belt.
- 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 158 diesel multiple unit Triple: [Edinburgh–Borders Railway, primaryRollingStock, Class 158 diesel multiple unit]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Class 158 diesel multiple unit Target entity description: 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.
-
A.
Class 153 diesel multiple unit
The Class 153 diesel multiple unit is a single-car British regional train used primarily for local and rural passenger services on non-electrified lines.
-
B.
Class 150 diesel multiple unit
The Class 150 diesel multiple unit is a British two- or three-car regional passenger train introduced in the 1980s and widely used on local and suburban services across the UK rail network.
-
C.
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.
-
D.
Class 170 diesel multiple unit
The Class 170 diesel multiple unit is a British Turbostar family regional train used extensively for passenger services across the UK rail network.
-
E.
Class 385 electric multiple units
The Class 385 electric multiple units are modern electric commuter trains used by ScotRail, primarily operating on electrified routes in Scotland’s Central Belt.
- 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_69c687e7b8688190811ffee72e096468 |
completed | March 27, 2026, 1:36 p.m. |
| NER | Named-entity recognition | batch_69c6aed0b364819081cb02af7a38ef11 |
completed | March 27, 2026, 4:22 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c6e42d6ba08190beccfad588594780 |
completed | March 27, 2026, 8:10 p.m. |
| NEDg | Description generation | batch_69c6e7c75140819082a32e4662e0b07c |
completed | March 27, 2026, 8:25 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c6e8881b848190bd6184aeaf311d24 |
completed | March 27, 2026, 8:28 p.m. |
Created at: March 27, 2026, 1:55 p.m.