Triple

T6370362
Position Surface form Disambiguated ID Type / Status
Subject Railway Technical Centre E143329 entity
Predicate operatedBy P86 FINISHED
Object British Rail Research
British Rail Research was the research and development arm of British Rail, responsible for pioneering advances in railway technology, engineering, and operations in the UK.
E143329 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 Research | Statement: [Railway Technical Centre, operatedBy, British Rail Research]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: British Rail Research
Context triple: [Railway Technical Centre, operatedBy, British Rail Research]
  • A. British Rail Engineering Limited
    British Rail Engineering Limited was the former engineering subsidiary of British Rail, responsible for designing, building, and maintaining much of the UK’s rolling stock and railway equipment.
  • B. Railway Technical Centre
    The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
  • C. British Rail
    British Rail was the state-owned company that operated most of the railway services in Great Britain from the late 1940s until the privatization of the rail network in the 1990s.
  • D. Transport Research Laboratory
    Transport Research Laboratory is a leading UK-based center for transport and mobility research, providing evidence-based analysis and consultancy to improve road safety, infrastructure, and transportation policy worldwide.
  • E. The Reshaping of British Railways
    The Reshaping of British Railways was a 1963 British government report by Dr. Richard Beeching that recommended widespread railway line and station closures, fundamentally reshaping the UK rail network.
  • 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 Research
Triple: [Railway Technical Centre, operatedBy, British Rail Research]
Generated description
British Rail Research was the research and development arm of British Rail, responsible for pioneering advances in railway technology, engineering, and operations in the UK.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: British Rail Research
Target entity description: British Rail Research was the research and development arm of British Rail, responsible for pioneering advances in railway technology, engineering, and operations in the UK.
  • A. British Rail Engineering Limited
    British Rail Engineering Limited was the former engineering subsidiary of British Rail, responsible for designing, building, and maintaining much of the UK’s rolling stock and railway equipment.
  • B. Railway Technical Centre chosen
    The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
  • C. British Rail
    British Rail was the state-owned company that operated most of the railway services in Great Britain from the late 1940s until the privatization of the rail network in the 1990s.
  • D. Transport Research Laboratory
    Transport Research Laboratory is a leading UK-based center for transport and mobility research, providing evidence-based analysis and consultancy to improve road safety, infrastructure, and transportation policy worldwide.
  • E. The Reshaping of British Railways
    The Reshaping of British Railways was a 1963 British government report by Dr. Richard Beeching that recommended widespread railway line and station closures, fundamentally reshaping the UK rail network.
  • 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_69c008d8c61081908bcaf61510d881ed completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c068277f6c81908e6a55e006f0c229 completed March 22, 2026, 10:07 p.m.
NED1 Entity disambiguation (via context triple) batch_69c62d8bce3481909b0bf7533b330d1f completed March 27, 2026, 7:11 a.m.
NEDg Description generation batch_69c62e2072808190a4f2dd262b631c88 completed March 27, 2026, 7:13 a.m.
NED2 Entity disambiguation (via description) batch_69c62f1bbdac8190b0cff9fbcddd68a7 completed March 27, 2026, 7:17 a.m.
Created at: March 22, 2026, 4:33 p.m.