Triple

T2841822
Position Surface form Disambiguated ID Type / Status
Subject Shenandoah Junction, West Virginia E62486 entity
Predicate hasRailJunctionOf P14468 FINISHED
Object Norfolk Southern Hagerstown District
The Norfolk Southern Hagerstown District is a freight rail line in the eastern United States operated by Norfolk Southern Railway, connecting key points in the Mid-Atlantic region including areas around Hagerstown, Maryland.
E303968 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: Norfolk Southern Hagerstown District | Statement: [Shenandoah Junction, West Virginia, hasRailJunctionOf, Norfolk Southern Hagerstown District]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Norfolk Southern Hagerstown District
Context triple: [Shenandoah Junction, West Virginia, hasRailJunctionOf, Norfolk Southern Hagerstown District]
  • A. Baltimore and Susquehanna Railroad
    The Baltimore and Susquehanna Railroad was an early 19th-century American railroad that helped pioneer rail transportation in Maryland and Pennsylvania, eventually becoming part of the Northern Central Railway system.
  • B. 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.
  • C. 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.
  • D. Western Maryland Railway
    Western Maryland Railway was a historic regional railroad that operated primarily in Maryland, Pennsylvania, and West Virginia, known for hauling coal and freight through the Appalachian region before being absorbed into larger rail systems.
  • E. Chesapeake and Ohio Railway
    The Chesapeake and Ohio Railway was a major American railroad best known for hauling Appalachian coal and operating key routes through the Mid-Atlantic and Midwest before becoming part of the modern CSX rail system.
  • 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: Norfolk Southern Hagerstown District
Triple: [Shenandoah Junction, West Virginia, hasRailJunctionOf, Norfolk Southern Hagerstown District]
Generated description
The Norfolk Southern Hagerstown District is a freight rail line in the eastern United States operated by Norfolk Southern Railway, connecting key points in the Mid-Atlantic region including areas around Hagerstown, Maryland.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Norfolk Southern Hagerstown District
Target entity description: The Norfolk Southern Hagerstown District is a freight rail line in the eastern United States operated by Norfolk Southern Railway, connecting key points in the Mid-Atlantic region including areas around Hagerstown, Maryland.
  • A. Baltimore and Susquehanna Railroad
    The Baltimore and Susquehanna Railroad was an early 19th-century American railroad that helped pioneer rail transportation in Maryland and Pennsylvania, eventually becoming part of the Northern Central Railway system.
  • B. 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.
  • C. 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.
  • D. Western Maryland Railway
    Western Maryland Railway was a historic regional railroad that operated primarily in Maryland, Pennsylvania, and West Virginia, known for hauling coal and freight through the Appalachian region before being absorbed into larger rail systems.
  • E. Chesapeake and Ohio Railway
    The Chesapeake and Ohio Railway was a major American railroad best known for hauling Appalachian coal and operating key routes through the Mid-Atlantic and Midwest before becoming part of the modern CSX rail system.
  • F. None of above. chosen

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_69ab4c3d16bc81908b3a1c98fbd287fe completed March 6, 2026, 9:50 p.m.
NER Named-entity recognition batch_69abe08ae5048190a0a3b573d9a5fdbc completed March 7, 2026, 8:23 a.m.
NED1 Entity disambiguation (via context triple) batch_69afe8d22e588190b119e7d9f9c3873a completed March 10, 2026, 9:48 a.m.
NEDg Description generation batch_69afea180cac8190a5f90c4ffa0dd87a completed March 10, 2026, 9:53 a.m.
NED2 Entity disambiguation (via description) batch_69b0089bdb2881909f9f7fbd60b79e2a completed March 10, 2026, 12:03 p.m.
Created at: March 6, 2026, 10:01 p.m.