Triple

T6488190
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 172 E146566 entity
Predicate hasSubclass P1244 FINISHED
Object British Rail Class 172/2 E146566 NE FINISHED

How this triple was built (2 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 172/2 | Statement: [British Rail Class 172, hasSubclass, British Rail Class 172/2]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 172/2
Context triple: [British Rail Class 172, hasSubclass, British Rail Class 172/2]
  • A. British Rail Class 172 chosen
    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.
  • B. 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.
  • C. British Rail Class 720
    The British Rail Class 720 is a modern electric multiple unit train built for high-capacity commuter and regional services on the UK rail network.
  • D. British Rail Class 332
    The British Rail Class 332 is an electric multiple unit train type built in the late 1990s specifically for high-speed, premium passenger services between London Paddington and Heathrow Airport.
  • E. British Rail Class 166
    The British Rail Class 166 is a diesel multiple-unit train used primarily for regional and commuter services in the UK, known for its higher speed and comfort compared to earlier local units.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69c0090158c08190af0df9a2348d2d52 completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c06a97fff88190b6f993c14df62649 completed March 22, 2026, 10:18 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7daf2ac9c81909a029c784cc70827 completed March 28, 2026, 1:43 p.m.
Created at: March 22, 2026, 4:52 p.m.