Northeast Branch Anacostia River
E924092
The Northeast Branch Anacostia River is a major tributary of the Anacostia River in Maryland, flowing through suburban communities and parklands before joining the river system that leads to Washington, D.C.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Northeast Branch Anacostia River canonical | 6 |
| Northeast Branch subwatershed of the Anacostia River | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11324052 — 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: Northeast Branch Anacostia River Context triple: [Anacostia Tributary Trail System, parallels, Northeast Branch Anacostia River]
-
A.
Northwest Branch Anacostia River
The Northwest Branch Anacostia River is a major tributary of the Anacostia River in Maryland and Washington, D.C., flowing through parkland and suburban communities and supporting popular recreational trails along its banks.
-
B.
Anacostia River
The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
-
C.
Patapsco River
The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
-
D.
South Branch Patapsco River
The South Branch Patapsco River is a principal headwater stream of Maryland’s Patapsco River, flowing through rural and forested areas before contributing to the river system that ultimately feeds into the Chesapeake Bay.
-
E.
Occoquan River
The Occoquan River is a tributary of the Potomac River in northern Virginia, known for its role in regional water supply, recreation, and the historic town of Occoquan along its banks.
- 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: Northeast Branch Anacostia River Target entity description: The Northeast Branch Anacostia River is a major tributary of the Anacostia River in Maryland, flowing through suburban communities and parklands before joining the river system that leads to Washington, D.C.
-
A.
Northwest Branch Anacostia River
The Northwest Branch Anacostia River is a major tributary of the Anacostia River in Maryland and Washington, D.C., flowing through parkland and suburban communities and supporting popular recreational trails along its banks.
-
B.
Anacostia River
The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
-
C.
Patapsco River
The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
-
D.
South Branch Patapsco River
The South Branch Patapsco River is a principal headwater stream of Maryland’s Patapsco River, flowing through rural and forested areas before contributing to the river system that ultimately feeds into the Chesapeake Bay.
-
E.
Occoquan River
The Occoquan River is a tributary of the Potomac River in northern Virginia, known for its role in regional water supply, recreation, and the historic town of Occoquan along its banks.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
tributary ⓘ |
| adjacentTo | Anacostia Tributary Trail System ⓘ |
| associatedWith |
Bladensburg Waterfront Park
ⓘ
floodplain wetlands ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| connectedTo | Washington, D.C. via Anacostia River ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crossedBy |
Baltimore–Washington Parkway
ⓘ
U.S. Route 1 ⓘ U.S. Route 50 ⓘ |
| drainageBasin |
Chesapeake Bay watershed
ⓘ
linked to:
Chesapeake Bay
|
| ecoregion | Piedmont and Coastal Plain transition zone ⓘ |
| flowsDirection | generally southward ⓘ |
| flowsInto | Anacostia River ⓘ |
| flowsThrough |
Bladensburg, Maryland
ⓘ
College Park, Maryland ⓘ Edmonston, Maryland ⓘ Hyattsville, Maryland ⓘ Riverdale Park, Maryland ⓘ parklands along the Anacostia tributaries ⓘ suburban communities of Prince George's County ⓘ |
| hasTributary |
Indian Creek
NERFINISHED
ⓘ
Paint Branch ⓘ |
| length | approximately 3 miles ⓘ |
| locatedIn |
Maryland
ⓘ
Prince George's County, Maryland ⓘ
linked to:
Prince George’s County, Maryland
|
| mouthLocation |
confluence with Northwest Branch Anacostia River
ⓘ
near Bladensburg, Maryland ⓘ |
| near |
University of Maryland, College Park
ⓘ
linked to:
University of Maryland
|
| partOf |
Anacostia River watershed
ⓘ
linked to:
Anacostia River
Northeast Branch subwatershed of the Anacostia River ⓘ
linked to:
Northeast Branch Anacostia River
|
| riverSystem |
Chesapeake Bay
ⓘ
Potomac River ⓘ |
| sourceLocation |
confluence of Indian Creek and Paint Branch
ⓘ
near College Park, Maryland ⓘ |
| subjectTo |
restoration and conservation efforts
ⓘ
urban runoff pollution ⓘ |
| tributaryOf | Anacostia River ⓘ |
| usedFor |
flood control channels and levees
ⓘ
recreation ⓘ |
| waterbodyType | freshwater stream ⓘ |
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: Northeast Branch Anacostia River Description of subject: The Northeast Branch Anacostia River is a major tributary of the Anacostia River in Maryland, flowing through suburban communities and parklands before joining the river system that leads to Washington, D.C.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.