Triple
T6637380
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CAF Mark 5 sleeping coaches |
E150491
|
entity |
| Predicate | couplingType |
P21783
|
FINISHED |
| Object | Dellner automatic couplers |
E129610
|
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: Dellner automatic couplers | Statement: [CAF Mark 5 sleeping coaches, couplingType, Dellner automatic couplers]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Dellner automatic couplers Context triple: [CAF Mark 5 sleeping coaches, couplingType, Dellner automatic couplers]
-
A.
Dellner automatic couplers
chosen
Dellner automatic couplers are railway vehicle coupling systems designed to automatically connect and disconnect train units, commonly used on modern multiple-unit fleets such as the Bombardier Voyager family.
-
B.
Scharfenberg coupler
The Scharfenberg coupler is an automatic railway coupling system widely used on modern passenger trains to quickly connect and disconnect cars while integrating mechanical, pneumatic, and electrical links.
-
C.
Janney coupler
The Janney coupler is a widely used automatic railway coupling system designed to securely connect train cars while improving safety and ease of operation compared to earlier link-and-pin couplers.
-
D.
Westinghouse air brake system
The Westinghouse air brake system is a pioneering railway braking technology that greatly improved the safety and control of trains by using compressed air to apply brakes simultaneously across all cars.
-
E.
Pullman-Standard
Pullman-Standard was a major American railcar manufacturer known for producing a wide range of passenger and freight cars throughout the 20th century.
- 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_69c687f0ceb08190bf40807bfc605fa5 |
completed | March 27, 2026, 1:36 p.m. |
| NER | Named-entity recognition | batch_69c6afcf439c8190b9334b34774da821 |
completed | March 27, 2026, 4:26 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c6cbf71874819080cc89b6740b1567 |
completed | March 27, 2026, 6:27 p.m. |
Created at: March 27, 2026, 1:59 p.m.