Patuxent River
E105020
The Patuxent River is a major Maryland waterway that flows through central parts of the state and serves as an important ecological and historical tributary of the Chesapeake Bay.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Patuxent River canonical | 65 |
| Patuxent River, Maryland | 4 |
| Middle Patuxent River | 1 |
| Patuxent River region | 1 |
| Patuxent River system | 1 |
| Pax River | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T732729 — 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: Patuxent River Context triple: [Chesapeake Bay, hasInflow, Patuxent River]
-
A.
Aquia Harbour, Virginia
Aquia Harbour, Virginia is a planned residential community and census-designated place in Stafford County known for its marina, golf course, and proximity to Quantico and the Washington, D.C. metropolitan area.
-
B.
Occoquan
Occoquan is a small historic town in Northern Virginia known for its preserved 18th- and 19th-century architecture, riverside setting, and arts and crafts shops.
-
C.
Baltimore Harbor
Baltimore Harbor is a historic seaport in Baltimore, Maryland, best known as the site of the War of 1812 battle that inspired the United States national anthem.
-
D.
Accokeek, Maryland
Accokeek, Maryland is a suburban community in southern Prince George’s County known for its scenic Potomac River shoreline and proximity to Washington, D.C.
-
E.
Patapsco River
The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
- 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: Patuxent River Target entity description: The Patuxent River is a major Maryland waterway that flows through central parts of the state and serves as an important ecological and historical tributary of the Chesapeake Bay.
-
A.
Aquia Harbour, Virginia
Aquia Harbour, Virginia is a planned residential community and census-designated place in Stafford County known for its marina, golf course, and proximity to Quantico and the Washington, D.C. metropolitan area.
-
B.
Occoquan
Occoquan is a small historic town in Northern Virginia known for its preserved 18th- and 19th-century architecture, riverside setting, and arts and crafts shops.
-
C.
Baltimore Harbor
Baltimore Harbor is a historic seaport in Baltimore, Maryland, best known as the site of the War of 1812 battle that inspired the United States national anthem.
-
D.
Accokeek, Maryland
Accokeek, Maryland is a suburban community in southern Prince George’s County known for its scenic Potomac River shoreline and proximity to Washington, D.C.
-
E.
Patapsco River
The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
- F. None of above. chosen
Statements (60)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
waterway ⓘ |
| basinSize |
approximately 2,400 square kilometers
ⓘ
approximately 930 square miles ⓘ |
| conservationEffort |
Chesapeake Bay restoration programs
ⓘ
Patuxent River Policy Plan ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crossedBy |
Interstate 95
ⓘ
Maryland Route 214 ⓘ Maryland Route 4 ⓘ U.S. Route 50 ⓘ |
| ecologicalSignificance |
important spawning and nursery area for Chesapeake Bay fish
ⓘ
supports tidal marsh and wetland ecosystems ⓘ |
| facesEnvironmentalIssue |
habitat loss
ⓘ
nutrient pollution ⓘ sedimentation ⓘ |
| flowsThrough |
Anne Arundel County, Maryland
ⓘ
linked to:
Anne Arundel County
Calvert County, Maryland ⓘ Charles County, Maryland ⓘ Howard County, Maryland ⓘ
linked to:
Howard County
Montgomery County, Maryland ⓘ
linked to:
Montgomery County
Prince George's County, Maryland ⓘ
linked to:
Prince George’s County, Maryland
St. Mary's County, Maryland ⓘ |
| formsBorderBetween |
Anne Arundel County, Maryland
ⓘ
linked to:
Anne Arundel County
Howard County, Maryland ⓘ
linked to:
Howard County
Prince George's County, Maryland ⓘ
linked to:
Prince George’s County, Maryland
|
| hasEstuary | tidal lower Patuxent River ⓘ |
| hasMilitaryInstallation | Naval Air Station Patuxent River ⓘ |
| hasProtectedArea |
Greenwell State Park
ⓘ
Jefferson Patterson Park and Museum ⓘ Jug Bay Wetlands Sanctuary ⓘ Patuxent Research Refuge ⓘ Patuxent River Park ⓘ |
| hasTributary |
Little Patuxent River
ⓘ
Middle Patuxent River ⓘ Swanson Creek ⓘ Western Branch Patuxent River ⓘ
linked to:
Little Patuxent River
|
| historicalSignificance |
saw military activity during the War of 1812
ⓘ
site of early colonial settlements in Maryland ⓘ used as transportation route during colonial era ⓘ |
| length |
approximately 115 miles
ⓘ
approximately 185 kilometers ⓘ |
| locatedIn | central Maryland ⓘ |
| majorTributaryOf | Chesapeake Bay ⓘ |
| mouth | Chesapeake Bay ⓘ |
| nameEtymology | derived from an Algonquian-language term ⓘ |
| near |
Bowie, Maryland
ⓘ
Laurel, Maryland ⓘ Lexington Park, Maryland ⓘ Solomons, Maryland ⓘ Upper Marlboro, Maryland ⓘ |
| region |
Mid-Atlantic United States
ⓘ
linked to:
Mid-Atlantic states
|
| riverSystem |
Chesapeake Bay watershed
ⓘ
linked to:
Chesapeake Bay
|
| sourceLocation | near Mount Airy, Maryland ⓘ |
| sourceRegion |
Piedmont region of Maryland
ⓘ
linked to:
Piedmont region
|
| state | Maryland ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ recreation ⓘ wildlife habitat ⓘ |
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: Patuxent River Description of subject: The Patuxent River is a major Maryland waterway that flows through central parts of the state and serves as an important ecological and historical tributary of the Chesapeake Bay.
Referenced by (73)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Patuxent River
linked to: Patuxent River
linked to: Patuxent River
linked to: Patuxent River
linked to: Patuxent River