Casselman River Bridge State Park
E627332
Casselman River Bridge State Park is a small historic park in western Maryland centered around an early 19th-century stone arch bridge that once carried the National Road over the Casselman River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Casselman River Bridge State Park canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6915966 — 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: Casselman River Bridge State Park Context triple: [Garrett County, Maryland, contains, Casselman River Bridge State Park]
-
A.
Givhans Ferry State Park
Givhans Ferry State Park is a scenic South Carolina state park along the Edisto River known for its cypress forests, river access, and outdoor recreation opportunities.
-
B.
Three Rivers State Park
Three Rivers State Park is a scenic Florida state park known for its lakeside recreation, camping, and wildlife viewing near the confluence of the Chattahoochee and Flint rivers.
-
C.
Riverside State Park
Riverside State Park is a large Washington state park near Spokane known for its rugged river canyons, forests, and extensive opportunities for hiking, biking, camping, and water recreation.
-
D.
Van Damme State Park
Van Damme State Park is a California state park on the Mendocino Coast known for its fern-filled canyons, lush redwood forests, and scenic beaches along the Pacific Ocean.
-
E.
Riverbank State Park
Riverbank State Park is a large recreational complex built atop a wastewater treatment plant along the Hudson River in Upper Manhattan, offering sports facilities, green space, and riverfront views.
- 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: Casselman River Bridge State Park Target entity description: Casselman River Bridge State Park is a small historic park in western Maryland centered around an early 19th-century stone arch bridge that once carried the National Road over the Casselman River.
-
A.
Givhans Ferry State Park
Givhans Ferry State Park is a scenic South Carolina state park along the Edisto River known for its cypress forests, river access, and outdoor recreation opportunities.
-
B.
Three Rivers State Park
Three Rivers State Park is a scenic Florida state park known for its lakeside recreation, camping, and wildlife viewing near the confluence of the Chattahoochee and Flint rivers.
-
C.
Riverside State Park
Riverside State Park is a large Washington state park near Spokane known for its rugged river canyons, forests, and extensive opportunities for hiking, biking, camping, and water recreation.
-
D.
Van Damme State Park
Van Damme State Park is a California state park on the Mendocino Coast known for its fern-filled canyons, lush redwood forests, and scenic beaches along the Pacific Ocean.
-
E.
Riverbank State Park
Riverbank State Park is a large recreational complex built atop a wastewater treatment plant along the Hudson River in Upper Manhattan, offering sports facilities, green space, and riverfront views.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf | state park ⓘ |
| associatedWith | National Road NERFINISHED ⓘ |
| bridgeCarries | former alignment of the National Road ⓘ |
| bridgeConstructionPeriod | early 19th century ⓘ |
| bridgeMaterial | stone ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Casselman River NERFINISHED ⓘ |
| currentBridgeUse |
pedestrian use
ⓘ
scenic viewing ⓘ |
| hasAttraction |
early 19th-century stone arch bridge
ⓘ
picnic areas ⓘ scenic river views ⓘ walking access to historic bridge ⓘ |
| hasCentralFeature | Casselman River Bridge NERFINISHED ⓘ |
| hasHeritageDesignation | historic park ⓘ |
| hasLegalStatus | state-owned land ⓘ |
| hasNearbyAttraction |
Grantsville historic district
NERFINISHED
ⓘ
Spruce Forest Artisan Village NERFINISHED ⓘ |
| hasRecreationActivity |
photography
ⓘ
picnicking ⓘ sightseeing ⓘ |
| hasStructureType | stone arch bridge ⓘ |
| hasTheme |
early American infrastructure
ⓘ
engineering history ⓘ transportation history ⓘ |
| historicalFunction | transportation crossing on National Road ⓘ |
| isOpenTo | public ⓘ |
| locatedIn |
Garrett County, Maryland
NERFINISHED
ⓘ
Maryland ⓘ |
| locatedInRegion | western Maryland NERFINISHED ⓘ |
| locatedNear |
Grantsville, Maryland
NERFINISHED
ⓘ
U.S. Route 40 Alternate NERFINISHED ⓘ |
| managedBy | Maryland Department of Natural Resources NERFINISHED ⓘ |
| namedAfter | Casselman River NERFINISHED ⓘ |
| partOf | National Road historic corridor NERFINISHED ⓘ |
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: Casselman River Bridge State Park Description of subject: Casselman River Bridge State Park is a small historic park in western Maryland centered around an early 19th-century stone arch bridge that once carried the National Road over the Casselman River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.