Triple

T5493747
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 158 E123762 entity
Predicate partOf P40 FINISHED
Object British Rail Sprinter programme
The British Rail Sprinter programme was a major late-20th-century initiative to modernize regional and local rail services in the UK through the introduction of a new generation of diesel multiple units.
E449888 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: British Rail Sprinter programme | Statement: [British Rail Class 158, partOf, British Rail Sprinter programme]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: British Rail Sprinter programme
Context triple: [British Rail Class 158, partOf, British Rail Sprinter programme]
  • A. British Rail Class 323
    The British Rail Class 323 is a type of electric multiple unit train widely used on suburban and commuter rail services in the West Midlands and North West England.
  • B. British Rail Class 159
    The British Rail Class 159 is a diesel multiple-unit train used for long-distance regional services in the UK, particularly known for operating intercity-style routes in the southwest of England.
  • C. British Rail Class 158
    The British Rail Class 158 is a diesel multiple-unit train built in the late 1980s and early 1990s for regional and intercity services across the UK rail network.
  • D. British Rail Class 222 Meridian
    The British Rail Class 222 Meridian is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known for its modern design, improved passenger comfort, and performance on routes such as those operated by East Midlands Railway.
  • E. British Rail Class 802
    The British Rail Class 802 is a bi-mode high-speed intercity train used in the UK, derived from Hitachi’s A-train design and operated by several train companies on long-distance routes.
  • 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 Sprinter programme
Triple: [British Rail Class 158, partOf, British Rail Sprinter programme]
Generated description
The British Rail Sprinter programme was a major late-20th-century initiative to modernize regional and local rail services in the UK through the introduction of a new generation of diesel multiple units.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: British Rail Sprinter programme
Target entity description: The British Rail Sprinter programme was a major late-20th-century initiative to modernize regional and local rail services in the UK through the introduction of a new generation of diesel multiple units.
  • A. British Rail Class 323
    The British Rail Class 323 is a type of electric multiple unit train widely used on suburban and commuter rail services in the West Midlands and North West England.
  • B. British Rail Class 159
    The British Rail Class 159 is a diesel multiple-unit train used for long-distance regional services in the UK, particularly known for operating intercity-style routes in the southwest of England.
  • C. British Rail Class 158 chosen
    The British Rail Class 158 is a diesel multiple-unit train built in the late 1980s and early 1990s for regional and intercity services across the UK rail network.
  • D. British Rail Class 222 Meridian
    The British Rail Class 222 Meridian is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known for its modern design, improved passenger comfort, and performance on routes such as those operated by East Midlands Railway.
  • E. British Rail Class 802
    The British Rail Class 802 is a bi-mode high-speed intercity train used in the UK, derived from Hitachi’s A-train design and operated by several train companies on long-distance routes.
  • F. None of above.

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_69bd464a2d908190869324ce176779c8 completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd9281a0148190bb7a8dae9c991b9c completed March 20, 2026, 6:31 p.m.
NED1 Entity disambiguation (via context triple) batch_69bf6c95ba008190ad61e1d31ae38d98 completed March 22, 2026, 4:14 a.m.
NEDg Description generation batch_69bf6d14c5888190901d1fa161a0b291 completed March 22, 2026, 4:16 a.m.
NED2 Entity disambiguation (via description) batch_69bf6d7f1498819086271181a028dc0e completed March 22, 2026, 4:18 a.m.
Created at: March 20, 2026, 2:10 p.m.