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.