Triple

T3165848
Position Surface form Disambiguated ID Type / Status
Subject Potomac Yard–VT Metrorail station E66208 entity
Predicate nearbyRailLine P25143 FINISHED
Object CSX RF&P Subdivision E75300 NE FINISHED

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: CSX RF&P Subdivision | Statement: [Potomac Yard–VT Metrorail station, nearbyRailLine, CSX RF&P Subdivision]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: CSX RF&P Subdivision
Context triple: [Potomac Yard–VT Metrorail station, nearbyRailLine, CSX RF&P Subdivision]
  • A. CSX RF&P Subdivision chosen
    The CSX RF&P Subdivision is a major CSX Transportation rail line in Virginia that forms part of the busy freight and passenger corridor linking Washington, D.C. with Richmond and points south.
  • B. CSX Capital Subdivision
    CSX Capital Subdivision is a CSX Transportation rail line in Maryland that serves as a key freight and commuter corridor between Washington, D.C., and Baltimore.
  • C. CSX Transportation Cumberland Subdivision
    CSX Transportation's Cumberland Subdivision is a major freight rail line running through Maryland and West Virginia that also hosts MARC commuter rail service on the Brunswick Line.
  • D. CSX Trenton Subdivision
    The CSX Trenton Subdivision is a freight rail line in the northeastern United States operated by CSX Transportation, forming part of a major corridor between Philadelphia and North Jersey.
  • E. CSX Transportation Metropolitan Subdivision
    The CSX Transportation Metropolitan Subdivision is a major freight and passenger rail corridor in Maryland and the Washington, D.C. area, forming part of CSX's network and hosting MARC commuter rail service.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: nearbyRailLine
Context triple: [Potomac Yard–VT Metrorail station, nearbyRailLine, CSX RF&P Subdivision]
  • A. nearestRailwayLine
    Indicates that one railway line is the closest in distance to a given location or feature compared to all other railway lines.
  • B. hasNearbyRailway chosen
    Indicates that one entity is located close to a railway associated with or relevant to another entity.
  • C. nearestRailwayTerminus
    Indicates that one location is the closest railway terminus to another specified place.
  • D. nearestPassengerRailStation
    Indicates that one entity is the closest passenger rail station in distance to another entity.
  • E. nearUndergroundLine
    Indicates that one entity is located close in distance to an underground (subway/metro) line.
  • F. None of above.

Provenance (4 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_69ad8585d7988190af37365331093ccd completed March 8, 2026, 2:19 p.m.
NER Named-entity recognition batch_69ada6424ee48190a29891ffbbc3811d completed March 8, 2026, 4:39 p.m.
NED1 Entity disambiguation (via context triple) batch_69b235dca2848190bc2a46d6dd1c9fc7 completed March 12, 2026, 3:41 a.m.
PD Predicate disambiguation batch_69ad9dfe0a948190928f2201d671c654 completed March 8, 2026, 4:04 p.m.
Created at: March 8, 2026, 3:06 p.m.