Triple

T5841882
Position Surface form Disambiguated ID Type / Status
Subject Turbostar E129612 entity
Predicate hasSubclass P1244 FINISHED
Object British Rail Class 170
The British Rail Class 170 is a widely used diesel multiple-unit passenger train in the UK, known for operating regional and intercity services across various rail franchises since the late 1990s.
 E598100 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 Class 170 | Statement: [Turbostar, hasSubclass, British Rail Class 170]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 170
Context triple: [Turbostar, hasSubclass, British Rail Class 170]
  • A. British Rail Class 150
    The British Rail Class 150 is a diesel multiple-unit passenger train built in the 1980s for regional and commuter services on the UK rail network.
  • B. British Rail Class 175
    The British Rail Class 175 is a diesel multiple-unit passenger train used on regional and intercity services in the United Kingdom, particularly across Wales and bordering regions.
  • C. British Rail Class 165
    The British Rail Class 165 is a diesel multiple-unit commuter train used primarily on suburban and regional services in the south of England.
  • D. 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.
  • E. 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.
  • 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 170
Triple: [Turbostar, hasSubclass, British Rail Class 170]
Generated description
The British Rail Class 170 is a widely used diesel multiple-unit passenger train in the UK, known for operating regional and intercity services across various rail franchises since the late 1990s.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 170
Target entity description: The British Rail Class 170 is a widely used diesel multiple-unit passenger train in the UK, known for operating regional and intercity services across various rail franchises since the late 1990s.
  • A. British Rail Class 150
    The British Rail Class 150 is a diesel multiple-unit passenger train built in the 1980s for regional and commuter services on the UK rail network.
  • B. British Rail Class 175
    The British Rail Class 175 is a diesel multiple-unit passenger train used on regional and intercity services in the United Kingdom, particularly across Wales and bordering regions.
  • C. British Rail Class 165
    The British Rail Class 165 is a diesel multiple-unit commuter train used primarily on suburban and regional services in the south of England.
  • D. 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.
  • E. 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.
  • 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_69c0084bd31c8190a796bb6284845e83 completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c034d876fc819089818c731116af56 completed March 22, 2026, 6:28 p.m.
NED1 Entity disambiguation (via context triple) batch_69c669d13b788190a6568d2d080ebdc6 completed March 27, 2026, 11:28 a.m.
NEDg Description generation batch_69c66a3d99688190a86787d5b1e47b3b completed March 27, 2026, 11:30 a.m.
NED2 Entity disambiguation (via description) batch_69c66a82694481908f21c46dc8e98e49 completed March 27, 2026, 11:31 a.m.
Created at: March 22, 2026, 3:54 p.m.