Triple

T22239264
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 321 E549676 entity
Predicate family P566 FINISHED
Object Mark 3-based EMU — NE NERFINISHED

How this triple was built (3 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: Mark 3-based EMU | Statement: [British Rail Class 321, family, Mark 3-based EMU]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mark 3-based EMU
Context triple: [British Rail Class 321, family, Mark 3-based EMU]
  • A. Rejuvenation EMU
    Rejuvenation EMU is a high-speed electric multiple unit train used in China’s Fuxing series, known for its advanced technology and fast intercity service.
  • B. Class 313 EMU
    The Class 313 EMU is a British dual-voltage electric multiple unit train introduced in the 1970s, notable for being among the first of its kind to operate on both overhead and third-rail power systems.
  • C. TX-1000 series EMU
    The TX-1000 series EMU is a Japanese electric multiple unit train type operated on the Tsukuba Express line, designed for high-frequency commuter services in the Tokyo metropolitan area.
  • D. Class 317 EMU
    The Class 317 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban and commuter services on 25 kV AC overhead electrified routes.
  • E. TX-2000 series EMU
    The TX-2000 series EMU is a Japanese electric multiple unit train used on the Tsukuba Express line, designed for high-speed, comfortable commuter service.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mark 3-based EMU
Target entity description: The Mark 3-based EMU is a family of British electric multiple-unit trains derived from the BR Mark 3 coach design, widely used for suburban and regional services.
  • A. Rejuvenation EMU
    Rejuvenation EMU is a high-speed electric multiple unit train used in China’s Fuxing series, known for its advanced technology and fast intercity service.
  • B. Class 313 EMU
    The Class 313 EMU is a British dual-voltage electric multiple unit train introduced in the 1970s, notable for being among the first of its kind to operate on both overhead and third-rail power systems.
  • C. TX-1000 series EMU
    The TX-1000 series EMU is a Japanese electric multiple unit train type operated on the Tsukuba Express line, designed for high-frequency commuter services in the Tokyo metropolitan area.
  • D. Class 317 EMU chosen
    The Class 317 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban and commuter services on 25 kV AC overhead electrified routes.
  • E. TX-2000 series EMU
    The TX-2000 series EMU is a Japanese electric multiple unit train used on the Tsukuba Express line, designed for high-speed, comfortable commuter service.
  • F. None of above.

Provenance (2 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_69e11e4102b881909cf47d3768e25c19 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f132123a048190ba5a90d7acb9aeb2 completed April 28, 2026, 10:17 p.m.
Created at: April 16, 2026, 8:38 p.m.