Triple

T23216730
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 91 E580764 entity
Predicate typicalFormation P8574 FINISHED
Object Class 91 + Mark 4 coaches + Driving Van Trailer 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: Class 91 + Mark 4 coaches + Driving Van Trailer | Statement: [British Rail Class 91, typicalFormation, Class 91 + Mark 4 coaches + Driving Van Trailer]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Class 91 + Mark 4 coaches + Driving Van Trailer
Context triple: [British Rail Class 91, typicalFormation, Class 91 + Mark 4 coaches + Driving Van Trailer]
  • A. CAF Mark 4 coaches
    CAF Mark 4 coaches are modern intercity passenger rail carriages built by Construcciones y Auxiliar de Ferrocarriles for Ireland’s mainline services, featuring improved comfort, safety, and onboard amenities over their predecessors.
  • B. MCI D-Series coaches
    MCI D-Series coaches are a line of long-distance, intercity motorcoaches manufactured by Motor Coach Industries and widely used by major bus operators across North America.
  • C. Corail coaches
    Corail coaches are a class of long-distance passenger railway carriages widely used in France for comfortable intercity services.
  • D. CAF Mark 5 sleeping coaches
    CAF Mark 5 sleeping coaches are modern, purpose-built overnight train carriages designed by Construcciones y Auxiliar de Ferrocarriles (CAF) to provide upgraded sleeper accommodation and amenities on long-distance services in the UK.
  • E. Amfleet II coaches
    Amfleet II coaches are long-distance passenger railcars used by Amtrak, known for their single-level design, enhanced seating comfort, and use on overnight and extended-route services in the United States.
  • 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: Class 91 + Mark 4 coaches + Driving Van Trailer
Target entity description: The "Class 91 + Mark 4 coaches + Driving Van Trailer" formation is a high-speed push–pull passenger train set used on the UK’s East Coast Main Line, pairing a Class 91 electric locomotive with Mark 4 carriages and a control cab at the opposite end.
  • A. CAF Mark 4 coaches
    CAF Mark 4 coaches are modern intercity passenger rail carriages built by Construcciones y Auxiliar de Ferrocarriles for Ireland’s mainline services, featuring improved comfort, safety, and onboard amenities over their predecessors.
  • B. MCI D-Series coaches
    MCI D-Series coaches are a line of long-distance, intercity motorcoaches manufactured by Motor Coach Industries and widely used by major bus operators across North America.
  • C. Corail coaches
    Corail coaches are a class of long-distance passenger railway carriages widely used in France for comfortable intercity services.
  • D. CAF Mark 5 sleeping coaches
    CAF Mark 5 sleeping coaches are modern, purpose-built overnight train carriages designed by Construcciones y Auxiliar de Ferrocarriles (CAF) to provide upgraded sleeper accommodation and amenities on long-distance services in the UK.
  • E. Amfleet II coaches
    Amfleet II coaches are long-distance passenger railcars used by Amtrak, known for their single-level design, enhanced seating comfort, and use on overnight and extended-route services in the United States.
  • F. None of above. chosen

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_69e2460389408190be74f41d217799a9 completed April 17, 2026, 2:38 p.m.
NER Named-entity recognition batch_69f19165949c81908e4d66a8a2b0a25a completed April 29, 2026, 5:04 a.m.
Created at: April 17, 2026, 4:08 p.m.