Triple
T437413
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Harpers Ferry, West Virginia |
E10039
|
entity |
| Predicate | transportCrossing |
P416
|
FINISHED |
| Object |
Harpers Ferry railroad bridge over Potomac River
The Harpers Ferry railroad bridge over the Potomac River is a historic rail crossing that links Harpers Ferry, West Virginia, with Maryland, serving as a key transportation and Civil War–era landmark in the region.
|
E57506
|
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: Harpers Ferry railroad bridge over Potomac River | Statement: [Harpers Ferry, West Virginia, transportCrossing, Harpers Ferry railroad bridge over Potomac River]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Harpers Ferry railroad bridge over Potomac River Context triple: [Harpers Ferry, West Virginia, transportCrossing, Harpers Ferry railroad bridge over Potomac River]
-
A.
Harpers Ferry, West Virginia
Harpers Ferry, West Virginia is a historic town at the confluence of the Potomac and Shenandoah rivers, best known for John Brown’s 1859 raid and its pivotal role in the American Civil War.
-
B.
Francis Scott Key Bridge (Baltimore)
The Francis Scott Key Bridge in Baltimore is a major steel arch bridge spanning the Patapsco River and forming part of the Baltimore Beltway, named in honor of the author of the U.S. national anthem.
-
C.
Longfellow Bridge
Longfellow Bridge is a historic steel and granite bridge in Boston, Massachusetts, known for carrying road and rail traffic between Boston and Cambridge across the Charles River.
-
D.
Old North Bridge
Old North Bridge is a historic wooden bridge in Concord, Massachusetts, famous as the site of one of the first battles of the American Revolutionary War on April 19, 1775.
-
E.
Rochambeau Bridge
The Rochambeau Bridge is a major highway span over the Potomac River in Washington, D.C., forming part of the 14th Street Bridge complex that carries traffic between the District and Virginia.
- 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: Harpers Ferry railroad bridge over Potomac River Triple: [Harpers Ferry, West Virginia, transportCrossing, Harpers Ferry railroad bridge over Potomac River]
Generated description
The Harpers Ferry railroad bridge over the Potomac River is a historic rail crossing that links Harpers Ferry, West Virginia, with Maryland, serving as a key transportation and Civil War–era landmark in the region.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Harpers Ferry railroad bridge over Potomac River Target entity description: The Harpers Ferry railroad bridge over the Potomac River is a historic rail crossing that links Harpers Ferry, West Virginia, with Maryland, serving as a key transportation and Civil War–era landmark in the region.
-
A.
Harpers Ferry, West Virginia
Harpers Ferry, West Virginia is a historic town at the confluence of the Potomac and Shenandoah rivers, best known for John Brown’s 1859 raid and its pivotal role in the American Civil War.
-
B.
Francis Scott Key Bridge (Baltimore)
The Francis Scott Key Bridge in Baltimore is a major steel arch bridge spanning the Patapsco River and forming part of the Baltimore Beltway, named in honor of the author of the U.S. national anthem.
-
C.
Longfellow Bridge
Longfellow Bridge is a historic steel and granite bridge in Boston, Massachusetts, known for carrying road and rail traffic between Boston and Cambridge across the Charles River.
-
D.
Old North Bridge
Old North Bridge is a historic wooden bridge in Concord, Massachusetts, famous as the site of one of the first battles of the American Revolutionary War on April 19, 1775.
-
E.
Rochambeau Bridge
The Rochambeau Bridge is a major highway span over the Potomac River in Washington, D.C., forming part of the 14th Street Bridge complex that carries traffic between the District and Virginia.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: transportCrossing Context triple: [Harpers Ferry, West Virginia, transportCrossing, Harpers Ferry railroad bridge over Potomac River]
-
A.
crossingType
Indicates the specific kind or category of crossing (e.g., how or where one thing passes over, through, or across another).
-
B.
crossedByRiver
Indicates that a river passes across or through a specified area, feature, or route.
-
C.
crossedBy
chosen
Indicates that one entity (typically a path, line, or boundary) is intersected or traversed by another entity.
-
D.
hasBorderCrossing
Indicates that there exists a point or facility where movement or transit is possible between the boundaries of two adjacent regions or jurisdictions.
-
E.
transportCorridor
Indicates a route or pathway used to move people, goods, or resources between locations.
- 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_69a2e8465ef481909655c681b01e2986 |
completed | Feb. 28, 2026, 1:06 p.m. |
| NER | Named-entity recognition | batch_69a2ef26bb78819089b3b5dac0330619 |
completed | Feb. 28, 2026, 1:35 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a44f522acc81909d16527bd08e458d |
completed | March 1, 2026, 2:38 p.m. |
| NEDg | Description generation | batch_69a44fd970d881909ed3ae28debf4760 |
completed | March 1, 2026, 2:40 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a4506c3d4881908eb97e489e4b9078 |
completed | March 1, 2026, 2:42 p.m. |
| PD | Predicate disambiguation | batch_69a2eddb98e081909efcf9f0a955a908 |
completed | Feb. 28, 2026, 1:30 p.m. |
Created at: Feb. 28, 2026, 1:11 p.m.