Triple

T90887
Position Surface form Disambiguated ID Type / Status
Subject 14th Street Bridge complex E1825 entity
Predicate railLineCarriedBy P782 FINISHED
Object CSX Transportation RF&P Subdivision
CSX Transportation RF&P Subdivision is a major freight and passenger rail corridor in the eastern United States, running through Virginia and the Washington, D.C. area as part of CSX’s network.
E10387 NE FINISHED

How this triple was built (5 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: CSX Transportation RF&P Subdivision | Statement: [14th Street Bridge complex, railLineCarriedBy, CSX Transportation RF&P Subdivision]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: CSX Transportation RF&P Subdivision
Context triple: [14th Street Bridge complex, railLineCarriedBy, CSX Transportation RF&P Subdivision]
  • A. Northern Central Railway
    Northern Central Railway was a historic American railroad that operated primarily in Pennsylvania and Maryland, serving as an important north–south link in the 19th and early 20th centuries.
  • B. CSX Transportation
    CSX Transportation is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • C. Philadelphia, Wilmington and Baltimore Railroad
    The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
  • D. Amtrak Empire Corridor
    The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
  • E. Norfolk Southern Railway
    Norfolk Southern Railway is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • 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: CSX Transportation RF&P Subdivision
Triple: [14th Street Bridge complex, railLineCarriedBy, CSX Transportation RF&P Subdivision]
Generated description
CSX Transportation RF&P Subdivision is a major freight and passenger rail corridor in the eastern United States, running through Virginia and the Washington, D.C. area as part of CSX’s network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: CSX Transportation RF&P Subdivision
Target entity description: CSX Transportation RF&P Subdivision is a major freight and passenger rail corridor in the eastern United States, running through Virginia and the Washington, D.C. area as part of CSX’s network.
  • A. Northern Central Railway
    Northern Central Railway was a historic American railroad that operated primarily in Pennsylvania and Maryland, serving as an important north–south link in the 19th and early 20th centuries.
  • B. CSX Transportation chosen
    CSX Transportation is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • C. Philadelphia, Wilmington and Baltimore Railroad
    The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
  • D. Amtrak Empire Corridor
    The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
  • E. Norfolk Southern Railway
    Norfolk Southern Railway is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: railLineCarriedBy
Context triple: [14th Street Bridge complex, railLineCarriedBy, CSX Transportation RF&P Subdivision]
  • A. railwayLine
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • B. hasRailSystem
    Indicates that an entity possesses or is served by a rail-based transportation system.
  • C. trains
    Indicates that one entity teaches, instructs, or coaches another entity to develop skills, knowledge, or abilities.
  • D. hasRailStation
    Indicates that one entity possesses, contains, or is served by a rail station.
  • E. servedByRailroad chosen
    Indicates that a location or facility is provided with transportation or service by a railroad line or company.
  • F. None of above.

Provenance (6 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a24feef1b08190bb9525f71cce053e completed Feb. 28, 2026, 2:16 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2c529506c81908da1e88f04d6b0a0 completed Feb. 28, 2026, 10:36 a.m.
NEDg Description generation batch_69a2c633ed688190937e3603b5bcfac8 completed Feb. 28, 2026, 10:40 a.m.
NED2 Entity disambiguation (via description) batch_69a2c6cb23a88190a134f3820a080201 completed Feb. 28, 2026, 10:43 a.m.
PD Predicate disambiguation batch_69a24eb82d408190b0f9c786152e8e4c completed Feb. 28, 2026, 2:11 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.