Triple

T18878004
Position Surface form Disambiguated ID Type / Status
Subject Wilmerding, Pennsylvania E461737 entity
Predicate NRHPListing P999 FINISHED
Object Westinghouse Air Brake Company complex — NE NERFINISHED

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: Westinghouse Air Brake Company complex | Statement: [Wilmerding, Pennsylvania, NRHPListing, Westinghouse Air Brake Company complex]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Westinghouse Air Brake Company complex
Context triple: [Wilmerding, Pennsylvania, NRHPListing, Westinghouse Air Brake Company complex]
  • A. Westinghouse Air Brake Company factory complex chosen
    The Westinghouse Air Brake Company factory complex is a historic industrial site in Wilmerding, Pennsylvania, that once housed the pioneering manufacturer of railway air brake systems founded by George Westinghouse.
  • B. Westinghouse Air Brake Company General Office Building
    The Westinghouse Air Brake Company General Office Building is a historic industrial-era office structure in Wilmerding, Pennsylvania, associated with George Westinghouse’s pioneering railroad brake enterprise.
  • C. Pullman Works
    Pullman Works was a major railcar manufacturing and repair facility historically associated with the Pullman Company in Chicago, Illinois.
  • 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. Westinghouse Air Brake Company
    Westinghouse Air Brake Company was an American industrial firm founded by George Westinghouse, best known for pioneering railway air brake technology that greatly improved train safety and efficiency.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69d8dcfc3430819095ee6fc0eb4c06a5 completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5c3cfc4408190a7ae91459f75be52 completed April 20, 2026, 6:12 a.m.
Created at: April 10, 2026, 11:57 a.m.