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.