Civil War Defenses of Washington
E179621
Civil War Defenses of Washington is a network of historic Union forts, batteries, and related sites built to protect the U.S. capital during the American Civil War, now preserved as a unit of the National Park System.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T1568101 — 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: Civil War Defenses of Washington Context triple: [National Capital Parks-East, hasPart, Civil War Defenses of Washington]
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A.
Pennsylvania Avenue National Historic Site
Pennsylvania Avenue National Historic Site is a protected historic corridor in Washington, D.C., encompassing landmark government buildings and monuments along the ceremonial route between the U.S. Capitol and the White House.
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B.
Smithsonian Institution Building
The Smithsonian Institution Building, often called "The Castle," is a distinctive red sandstone landmark on the National Mall that serves as the historic headquarters and visitor center of the Smithsonian Institution.
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C.
Fort McNair
Fort McNair is a historic U.S. Army post in Washington, D.C., that houses major military commands and educational institutions and has served as a key defense installation since the early 19th century.
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D.
Smithsonian Arts and Industries Building
The Smithsonian Arts and Industries Building is a historic museum on the National Mall in Washington, D.C., known as one of the oldest Smithsonian buildings and an early home for the Institution’s exhibitions of American innovation and culture.
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E.
Tudor Place
Tudor Place is a historic Federal-style mansion and garden in Washington, D.C., once home to descendants of Martha Washington and now preserved as a museum.
- 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: Civil War Defenses of Washington Target entity description: Civil War Defenses of Washington is a network of historic Union forts, batteries, and related sites built to protect the U.S. capital during the American Civil War, now preserved as a unit of the National Park System.
-
A.
Pennsylvania Avenue National Historic Site
Pennsylvania Avenue National Historic Site is a protected historic corridor in Washington, D.C., encompassing landmark government buildings and monuments along the ceremonial route between the U.S. Capitol and the White House.
-
B.
Smithsonian Institution Building
The Smithsonian Institution Building, often called "The Castle," is a distinctive red sandstone landmark on the National Mall that serves as the historic headquarters and visitor center of the Smithsonian Institution.
-
C.
Fort McNair
Fort McNair is a historic U.S. Army post in Washington, D.C., that houses major military commands and educational institutions and has served as a key defense installation since the early 19th century.
-
D.
Smithsonian Arts and Industries Building
The Smithsonian Arts and Industries Building is a historic museum on the National Mall in Washington, D.C., known as one of the oldest Smithsonian buildings and an early home for the Institution’s exhibitions of American innovation and culture.
-
E.
Tudor Place
Tudor Place is a historic Federal-style mansion and garden in Washington, D.C., once home to descendants of Martha Washington and now preserved as a museum.
- F. None of above. chosen
Statements (50)
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: Civil War Defenses of Washington Description of subject: Civil War Defenses of Washington is a network of historic Union forts, batteries, and related sites built to protect the U.S. capital during the American Civil War, now preserved as a unit of the National Park System.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
National Capital Parks-East
this entity surface form:
American Civil War defenses of Washington, D.C.
this entity surface form:
Civil War Defenses of Washington sites
Fort Circle Parks (southeastern segments)
→
heritageDesignation
→
Civil War Defenses of Washington
ⓘ
this entity surface form:
Civil War Defenses of Washington historic system
this entity surface form:
Washington, D.C. fortifications