Triple

T18305509
Position Surface form Disambiguated ID Type / Status
Subject Rockville Bridge E438471 entity
Predicate hasCategory P87 FINISHED
Object Pennsylvania Railroad bridges 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: Pennsylvania Railroad bridges | Statement: [Rockville Bridge, hasCategory, Pennsylvania Railroad bridges]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad bridges
Context triple: [Rockville Bridge, hasCategory, Pennsylvania Railroad bridges]
  • A. Lehigh Valley Railroad Bridge (former)
    The Lehigh Valley Railroad Bridge (former) was a now-demolished rail bridge that once carried Lehigh Valley Railroad trains across Newark Bay in New Jersey.
  • B. Delaware River bridge system
    The Delaware River bridge system is a network of major highway and commuter bridges that span the Delaware River, connecting New Jersey, Pennsylvania, and Delaware to support regional transportation and commerce.
  • C. Bollman Truss Railroad Bridge
    The Bollman Truss Railroad Bridge is a historic 19th-century iron railroad bridge in Savage, Maryland, notable as one of the earliest surviving examples of a cast- and wrought-iron truss bridge in the United States.
  • D. Starrucca Viaduct, Pennsylvania
    Starrucca Viaduct in Pennsylvania is a historic 19th-century stone railroad bridge renowned for its impressive series of arches and its prominence in American landscape art.
  • E. CSX Railroad Bridge
    The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
  • 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: Pennsylvania Railroad bridges
Target entity description: Pennsylvania Railroad bridges are a group of historically significant railroad bridges in the United States that were designed, built, or operated by the former Pennsylvania Railroad, often noted for their large scale and engineering innovation.
  • A. Lehigh Valley Railroad Bridge (former)
    The Lehigh Valley Railroad Bridge (former) was a now-demolished rail bridge that once carried Lehigh Valley Railroad trains across Newark Bay in New Jersey.
  • B. Delaware River bridge system
    The Delaware River bridge system is a network of major highway and commuter bridges that span the Delaware River, connecting New Jersey, Pennsylvania, and Delaware to support regional transportation and commerce.
  • C. Bollman Truss Railroad Bridge
    The Bollman Truss Railroad Bridge is a historic 19th-century iron railroad bridge in Savage, Maryland, notable as one of the earliest surviving examples of a cast- and wrought-iron truss bridge in the United States.
  • D. Starrucca Viaduct, Pennsylvania
    Starrucca Viaduct in Pennsylvania is a historic 19th-century stone railroad bridge renowned for its impressive series of arches and its prominence in American landscape art.
  • E. CSX Railroad Bridge
    The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
  • 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_69d8b915e3e881909125d760c15d0c29 completed April 10, 2026, 8:47 a.m.
NER Named-entity recognition batch_69e50183394081909b86cefaaa0a3aa8 completed April 19, 2026, 4:23 p.m.
Created at: April 10, 2026, 10:35 a.m.