Blue Plains rail bridge (if present) over Potomac River
E472867
The Blue Plains rail bridge over the Potomac River is a railroad crossing structure located near the Blue Plains area in Washington, D.C., forming part of the region’s network of Potomac River crossings.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Blue Plains rail bridge (if present) over Potomac River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4832785 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Blue Plains rail bridge (if present) over Potomac River Context triple: [Potomac River crossings toward Washington, D.C., hasComponent, Blue Plains rail bridge (if present) over Potomac River]
-
A.
Susquehanna River bridge at Havre de Grace
The Susquehanna River bridge at Havre de Grace is a historic railroad crossing over the Susquehanna River in Maryland that played a key role in 19th-century rail travel along the Northeast Corridor.
-
B.
Long Bridge (Civil War-era structure)
Long Bridge (Civil War-era structure) was a strategically vital Potomac River crossing near Washington, D.C., heavily used and fortified by Union forces during the American Civil War.
-
C.
Rockville Bridge
Rockville Bridge is a historic Pennsylvania railroad bridge renowned as one of the longest stone masonry arch bridges in the world.
-
D.
CSX Railroad Bridge
The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
-
E.
Powhite Parkway Bridge
The Powhite Parkway Bridge is a major toll bridge in Richmond, Virginia, carrying the Powhite Parkway across the James River as part of a key commuter route into the city.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Blue Plains rail bridge (if present) over Potomac River Target entity description: The Blue Plains rail bridge over the Potomac River is a railroad crossing structure located near the Blue Plains area in Washington, D.C., forming part of the region’s network of Potomac River crossings.
-
A.
Susquehanna River bridge at Havre de Grace
The Susquehanna River bridge at Havre de Grace is a historic railroad crossing over the Susquehanna River in Maryland that played a key role in 19th-century rail travel along the Northeast Corridor.
-
B.
Long Bridge (Civil War-era structure)
Long Bridge (Civil War-era structure) was a strategically vital Potomac River crossing near Washington, D.C., heavily used and fortified by Union forces during the American Civil War.
-
C.
Rockville Bridge
Rockville Bridge is a historic Pennsylvania railroad bridge renowned as one of the longest stone masonry arch bridges in the world.
-
D.
CSX Railroad Bridge
The CSX Railroad Bridge is a freight rail bridge in Washington, D.C., carrying CSX Transportation trains across the Anacostia River as part of a major East Coast rail corridor.
-
E.
Powhite Parkway Bridge
The Powhite Parkway Bridge is a major toll bridge in Richmond, Virginia, carrying the Powhite Parkway across the James River as part of a key commuter route into the city.
- F. None of above. chosen
Statements (19)
| Predicate | Object |
|---|---|
| instanceOf |
railway bridge
ⓘ
transport infrastructure ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crosses | Potomac River ⓘ |
| hasAccessRestriction | not open to road vehicles ⓘ |
| hasFunction | railroad crossing of Potomac River ⓘ |
| locatedIn |
District of Columbia
ⓘ
Washington, D.C. ⓘ |
| locatedNear |
Blue Plains
ⓘ
Blue Plains Advanced Wastewater Treatment Plant ⓘ Washington, D.C.–Maryland border ⓘ
linked to:
District of Columbia–Maryland border
|
| locatedUpstreamOf | Potomac River estuary ⓘ |
| partOf |
Potomac River crossings
ⓘ
regional rail network ⓘ |
| region |
Mid-Atlantic United States
ⓘ
linked to:
Mid-Atlantic states
|
| serves |
Washington, D.C. metropolitan area
ⓘ
linked to:
Washington metropolitan area
|
| structureType | bridge ⓘ |
| usedFor | rail transport ⓘ |
| waterwayCrossed | Potomac River ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Blue Plains rail bridge (if present) over Potomac River Description of subject: The Blue Plains rail bridge over the Potomac River is a railroad crossing structure located near the Blue Plains area in Washington, D.C., forming part of the region’s network of Potomac River crossings.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Potomac River crossings toward Washington, D.C.
→
hasComponent
→
Blue Plains rail bridge (if present) over Potomac River
ⓘ