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.