Triple
T10183363
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | R68 |
E236842
|
entity |
| Predicate | brakeSystem |
P4166
|
FINISHED |
| Object |
WABCO RT-2
The WABCO RT-2 is a railway braking system developed by Westinghouse Air Brake Company, commonly used on rapid transit and commuter rail vehicles for reliable pneumatic brake control.
|
E32613
|
NE FINISHED |
How this triple was built (4 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: WABCO RT-2 | Statement: [R68, brakeSystem, WABCO RT-2]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: WABCO RT-2 Context triple: [R68, brakeSystem, WABCO RT-2]
-
A.
Meritor
Meritor is the abbreviated name of Meritor Savings Bank, FSB, a former U.S. financial institution that provided consumer and commercial banking services.
-
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.
ADtranz
ADtranz was a major European rail engineering company known for designing and manufacturing locomotives, multiple units, and other railway rolling stock before its acquisition by Bombardier.
-
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.
Electrostar
Electrostar is a widely used family of British electric multiple-unit commuter trains built by Bombardier for suburban and regional services.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: WABCO RT-2 Triple: [R68, brakeSystem, WABCO RT-2]
Generated description
The WABCO RT-2 is a railway braking system developed by Westinghouse Air Brake Company, commonly used on rapid transit and commuter rail vehicles for reliable pneumatic brake control.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: WABCO RT-2 Target entity description: The WABCO RT-2 is a railway braking system developed by Westinghouse Air Brake Company, commonly used on rapid transit and commuter rail vehicles for reliable pneumatic brake control.
-
A.
Meritor
Meritor is the abbreviated name of Meritor Savings Bank, FSB, a former U.S. financial institution that provided consumer and commercial banking services.
-
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.
ADtranz
ADtranz was a major European rail engineering company known for designing and manufacturing locomotives, multiple units, and other railway rolling stock before its acquisition by Bombardier.
-
D.
Westinghouse air brake system
chosen
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.
Electrostar
Electrostar is a widely used family of British electric multiple-unit commuter trains built by Bombardier for suburban and regional services.
- F. None of above.
Provenance (5 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_69ca84d7260c8190bfbec36762943f37 |
completed | March 30, 2026, 2:12 p.m. |
| NER | Named-entity recognition | batch_69cded3408b88190a7d981a6dcea48d9 |
completed | April 2, 2026, 4:14 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d3179b9de88190ba3beb7d6dbf7ad3 |
completed | April 6, 2026, 2:16 a.m. |
| NEDg | Description generation | batch_69d318d099648190a42fffec876711dd |
completed | April 6, 2026, 2:22 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d3194331c481909b8ef2dead8ed105 |
completed | April 6, 2026, 2:24 a.m. |
Created at: March 30, 2026, 9:12 p.m.