Greenwell State Park
E468067
Greenwell State Park is a public recreation and conservation area in Maryland known for its waterfront access, trails, and outdoor activities along the Patuxent River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Greenwell State Park canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4731603 — 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: Greenwell State Park Context triple: [Patuxent River, hasProtectedArea, Greenwell State Park]
-
A.
Allaire State Park
Allaire State Park is a New Jersey state park known for its historic 19th-century iron-making village, scenic woodlands, and recreational trails along the Manasquan River.
-
B.
John Bryan State Park
John Bryan State Park is a scenic Ohio state park known for its deep limestone gorge carved by the Little Miami River, offering hiking, rock climbing, and camping near Yellow Springs.
-
C.
Guy W. Talbot State Park
Guy W. Talbot State Park is a scenic Oregon state park in the Columbia River Gorge known for its lush forested landscape and access to Latourell Falls.
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D.
Nickerson State Park
Nickerson State Park is a large Massachusetts state park on Cape Cod known for its kettle ponds, wooded campsites, and extensive hiking and biking trails.
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E.
Watoga State Park
Watoga State Park is a large, forested recreational area in West Virginia known for its hiking trails, cabins, and outdoor activities within the Allegheny Mountains.
- 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: Greenwell State Park Target entity description: Greenwell State Park is a public recreation and conservation area in Maryland known for its waterfront access, trails, and outdoor activities along the Patuxent River.
-
A.
Allaire State Park
Allaire State Park is a New Jersey state park known for its historic 19th-century iron-making village, scenic woodlands, and recreational trails along the Manasquan River.
-
B.
John Bryan State Park
John Bryan State Park is a scenic Ohio state park known for its deep limestone gorge carved by the Little Miami River, offering hiking, rock climbing, and camping near Yellow Springs.
-
C.
Guy W. Talbot State Park
Guy W. Talbot State Park is a scenic Oregon state park in the Columbia River Gorge known for its lush forested landscape and access to Latourell Falls.
-
D.
Nickerson State Park
Nickerson State Park is a large Massachusetts state park on Cape Cod known for its kettle ponds, wooded campsites, and extensive hiking and biking trails.
-
E.
Watoga State Park
Watoga State Park is a large, forested recreational area in West Virginia known for its hiking trails, cabins, and outdoor activities within the Allegheny Mountains.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
protected area
ⓘ
public recreation area ⓘ state park ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| establishedIn | 1971 ⓘ |
| hasArea | about 596 acres ⓘ |
| hasConservationFocus |
Patuxent River shoreline protection
ⓘ
wildlife habitat preservation ⓘ |
| hasFacility |
accessible facilities
ⓘ
boat launch ⓘ fishing pier ⓘ pavilions ⓘ picnic areas ⓘ trails ⓘ |
| hasHabitat |
fields
ⓘ
forests ⓘ river shoreline ⓘ wetlands ⓘ |
| hasLandUse |
conservation
ⓘ
environmental education ⓘ recreation ⓘ |
| hasTrail |
equestrian trails
ⓘ
hiking trails ⓘ multi‑use trails ⓘ |
| hasWaterfrontAccess | Patuxent River ⓘ |
| locatedIn |
St. Mary’s County, Maryland
ⓘ
linked to:
St. Mary's County, Maryland
|
| locatedOnWaterbody | Patuxent River ⓘ |
| namedAfter | Greenwell family ⓘ |
| offersActivity |
birdwatching
ⓘ
boating ⓘ canoeing ⓘ fishing ⓘ hiking ⓘ horseback riding ⓘ kayaking ⓘ nature study ⓘ picnicking ⓘ |
| openToPublic | yes ⓘ |
| operator | Maryland Department of Natural Resources ⓘ |
| ownedBy |
State of Maryland
ⓘ
linked to:
Maryland
|
| partOf | Maryland state park system ⓘ |
| state | Maryland ⓘ |
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: Greenwell State Park Description of subject: Greenwell State Park is a public recreation and conservation area in Maryland known for its waterfront access, trails, and outdoor activities along the Patuxent River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.