Upper Marlboro, Maryland
E57524
Upper Marlboro, Maryland is a small historic town in the Washington, D.C. metropolitan area that serves as the administrative and judicial center of Prince George’s County.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T253798 — 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: Upper Marlboro, Maryland Context triple: [Prince George’s County, Maryland, seat, Upper Marlboro, Maryland]
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A.
Glen Burnie, Maryland
Glen Burnie, Maryland is a suburban community in Anne Arundel County near Baltimore, known as a residential and commercial hub with light rail access to the city.
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B.
Hunt Valley, Maryland
Hunt Valley, Maryland is a suburban community north of Baltimore known for its business parks, shopping centers, and role as a regional commercial hub.
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C.
Rockville, Maryland
Rockville, Maryland is a suburban city in Montgomery County just northwest of Washington, D.C., known as a major regional commercial and technology hub and home to several federal agencies.
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D.
Frederick, Maryland
Frederick, Maryland is a historic city in western Maryland known for its vibrant downtown, Civil War heritage, and role as a regional hub for government and biomedical research.
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E.
Silver Spring, Maryland
Silver Spring, Maryland is a major suburban community just north of Washington, D.C., known as a regional commercial hub and home to several federal agencies and media organizations.
- 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: Upper Marlboro, Maryland Target entity description: Upper Marlboro, Maryland is a small historic town in the Washington, D.C. metropolitan area that serves as the administrative and judicial center of Prince George’s County.
-
A.
Glen Burnie, Maryland
Glen Burnie, Maryland is a suburban community in Anne Arundel County near Baltimore, known as a residential and commercial hub with light rail access to the city.
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B.
Hunt Valley, Maryland
Hunt Valley, Maryland is a suburban community north of Baltimore known for its business parks, shopping centers, and role as a regional commercial hub.
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C.
Rockville, Maryland
Rockville, Maryland is a suburban city in Montgomery County just northwest of Washington, D.C., known as a major regional commercial and technology hub and home to several federal agencies.
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D.
Frederick, Maryland
Frederick, Maryland is a historic city in western Maryland known for its vibrant downtown, Civil War heritage, and role as a regional hub for government and biomedical research.
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E.
Silver Spring, Maryland
Silver Spring, Maryland is a major suburban community just north of Washington, D.C., known as a regional commercial hub and home to several federal agencies and media organizations.
- F. None of above. chosen
Statements (46)
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: Upper Marlboro, Maryland Description of subject: Upper Marlboro, Maryland is a small historic town in the Washington, D.C. metropolitan area that serves as the administrative and judicial center of Prince George’s County.
Referenced by (44)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Upper Marlboro, Maryland
linked to: Upper Marlboro, Maryland
linked to: Upper Marlboro, Maryland
subject linked to:
Largo
subject linked to:
judicial center of Prince George's County, Maryland
subject linked to:
judicial center of Prince George's County, Maryland
linked to: Upper Marlboro, Maryland
linked to: Upper Marlboro, Maryland
linked to: Upper Marlboro, Maryland
subject linked to:
Trinity Episcopal Church
linked to: Upper Marlboro, Maryland
linked to: Upper Marlboro, Maryland
linked to: Upper Marlboro, Maryland
linked to: Upper Marlboro, Maryland
subject linked to:
John Carroll (first Catholic bishop in the United States)
subject linked to:
Prince George’s County Council District (local government district)
International Association of Machinists and Aerospace Workers
→
headquartersLocation
→
Upper Marlboro, Maryland
ⓘ
subject linked to:
IAM