Triple

T2429934
Position Surface form Disambiguated ID Type / Status
Subject Class 802 Nova 1 E52817 entity
Predicate family P566 FINISHED
Object 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.
 E269459 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 802 | Statement: [Class 802 Nova 1, family, British Rail Class 802]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 802
Context triple: [Class 802 Nova 1, family, British Rail Class 802]
  • A. British Rail Class 395
    The British Rail Class 395 is a high-speed electric multiple unit train used in the UK, best known for operating Southeastern’s domestic services on High Speed 1 between London and Kent.
  • B. British Rail Class 387
    The British Rail Class 387 is a fleet of modern electric multiple-unit trains used on high-speed commuter and airport services in the UK.
  • C. British Rail Class 168
    The British Rail Class 168 is a diesel multiple-unit train used primarily by Chiltern Railways for regional and intercity services in the United Kingdom.
  • D. British Rail Class 375
    The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
  • E. 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.
  • 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 802
Triple: [Class 802 Nova 1, family, British Rail Class 802]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 802
Target entity description: 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.
  • A. British Rail Class 395
    The British Rail Class 395 is a high-speed electric multiple unit train used in the UK, best known for operating Southeastern’s domestic services on High Speed 1 between London and Kent.
  • B. British Rail Class 387
    The British Rail Class 387 is a fleet of modern electric multiple-unit trains used on high-speed commuter and airport services in the UK.
  • C. British Rail Class 168
    The British Rail Class 168 is a diesel multiple-unit train used primarily by Chiltern Railways for regional and intercity services in the United Kingdom.
  • D. British Rail Class 375
    The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
  • E. 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.
  • 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_69ab4959bcc0819083246f9fb10439e3 completed March 6, 2026, 9:38 p.m.
NER Named-entity recognition batch_69abc99fcd048190a85b95a9a8ae6d4d completed March 7, 2026, 6:45 a.m.
NED1 Entity disambiguation (via context triple) batch_69af17864e9881909b32b70d55028016 completed March 9, 2026, 6:55 p.m.
NEDg Description generation batch_69af185baf5c8190b8aa3dc672f2e1be completed March 9, 2026, 6:58 p.m.
NED2 Entity disambiguation (via description) batch_69af18d8ab0881908ecd027080f96e0e completed March 9, 2026, 7 p.m.
Created at: March 6, 2026, 9:43 p.m.