Triple

T2310138
Position Surface form Disambiguated ID Type / Status
Subject East Lancashire Railway E51934 entity
Predicate hasNotableDieselClass P4856 FINISHED
Object British Rail Class 37
The British Rail Class 37 is a class of diesel-electric locomotives introduced in the early 1960s, renowned for their distinctive growling engine sound and long service life across the UK rail network.
E256295 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 37 | Statement: [East Lancashire Railway, hasNotableDieselClass, British Rail Class 37]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: British Rail Class 37
Context triple: [East Lancashire Railway, hasNotableDieselClass, British Rail Class 37]
  • A. British Rail Class 47
    The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
  • B. British Rail Class 373
    The British Rail Class 373 is a high-speed electric multiple unit train designed for cross-Channel services through the Channel Tunnel, primarily operated by Eurostar between the UK and mainland Europe.
  • C. British Rail Class 377
    The British Rail Class 377 is a fleet of electric multiple-unit commuter trains widely used in southeast England, particularly by Govia Thameslink Railway services.
  • D. British Rail Class 171
    The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
  • E. British Rail Class 172
    The British Rail Class 172 is a diesel multiple-unit train used on regional and suburban services in the UK, featuring improved performance, reliability, and passenger comfort over earlier Turbostar units.
  • 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 37
Triple: [East Lancashire Railway, hasNotableDieselClass, British Rail Class 37]
Generated description
The British Rail Class 37 is a class of diesel-electric locomotives introduced in the early 1960s, renowned for their distinctive growling engine sound and long service life across the UK rail network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: British Rail Class 37
Target entity description: The British Rail Class 37 is a class of diesel-electric locomotives introduced in the early 1960s, renowned for their distinctive growling engine sound and long service life across the UK rail network.
  • A. British Rail Class 47
    The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
  • B. British Rail Class 373
    The British Rail Class 373 is a high-speed electric multiple unit train designed for cross-Channel services through the Channel Tunnel, primarily operated by Eurostar between the UK and mainland Europe.
  • C. British Rail Class 377
    The British Rail Class 377 is a fleet of electric multiple-unit commuter trains widely used in southeast England, particularly by Govia Thameslink Railway services.
  • D. British Rail Class 171
    The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
  • E. British Rail Class 172
    The British Rail Class 172 is a diesel multiple-unit train used on regional and suburban services in the UK, featuring improved performance, reliability, and passenger comfort over earlier Turbostar units.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasNotableDieselClass
Context triple: [East Lancashire Railway, hasNotableDieselClass, British Rail Class 37]
  • A. hasNotableFeature
    Indicates that an entity possesses a specific characteristic, trait, or attribute that is considered significant or noteworthy.
  • B. notableEngineType chosen
    Indicates that an entity is particularly recognized for using or being associated with a specific type of engine.
  • C. hasLocomotive
    Indicates that one entity possesses or is equipped with a locomotive as part of its composition or operation.
  • D. hasRefuellingCapabilityFor
    Indicates that one entity is capable of providing or performing refuelling operations for another entity.
  • E. automotiveClassSupported
    Indicates that a particular automotive class or category is supported or compatible within a given context or system.
  • 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_69a88b0bb30c81908ded03b006d29387 completed March 4, 2026, 7:42 p.m.
NER Named-entity recognition batch_69abc685f05481909c863b29d1f6bacd completed March 7, 2026, 6:32 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae8959d860819095ea3113e3d9264e completed March 9, 2026, 8:48 a.m.
NEDg Description generation batch_69ae8d49b7c081909f89c71a56067458 completed March 9, 2026, 9:05 a.m.
NED2 Entity disambiguation (via description) batch_69ae8dc4cf44819082f242d6806aa45a completed March 9, 2026, 9:07 a.m.
PD Predicate disambiguation batch_69abc58e88e481908733fdf79d3f8a15 completed March 7, 2026, 6:28 a.m.
Created at: March 4, 2026, 7:49 p.m.