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.