Pentagon
E1772
The Pentagon is the five-sided headquarters of the United States Department of Defense and a symbol of the U.S. military.
All labels observed (23)
How this entity was disambiguated
This entity first appeared as the object of triple T1151 — 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: Pentagon Context triple: [Washington, D.C., hostsInstitution, Pentagon]
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A.
United States Capitol
The United States Capitol is the iconic neoclassical building in Washington, D.C., that houses the U.S. Congress and serves as a central symbol of American democracy.
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B.
White House
The White House is the official residence and primary workplace of the president of the United States, located at 1600 Pennsylvania Avenue in Washington, D.C.
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C.
Lincoln Memorial
The Lincoln Memorial is a monumental neoclassical temple in Washington, D.C., honoring the 16th U.S. president, Abraham Lincoln, and serving as a symbolic site for American civil rights and national unity.
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D.
United Nations Headquarters
The United Nations Headquarters is the main administrative and diplomatic center of the UN, where representatives of member states convene to discuss and address global issues.
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E.
Harry S. Truman National Historic Site
Harry S. Truman National Historic Site is a preserved historic property in Independence, Missouri, that includes the longtime home and related sites associated with the 33rd U.S. president, Harry S. Truman.
- 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: Pentagon Target entity description: The Pentagon is the five-sided headquarters of the United States Department of Defense and a symbol of the U.S. military.
-
A.
United States Capitol
The United States Capitol is the iconic neoclassical building in Washington, D.C., that houses the U.S. Congress and serves as a central symbol of American democracy.
-
B.
White House
The White House is the official residence and primary workplace of the president of the United States, located at 1600 Pennsylvania Avenue in Washington, D.C.
-
C.
Lincoln Memorial
The Lincoln Memorial is a monumental neoclassical temple in Washington, D.C., honoring the 16th U.S. president, Abraham Lincoln, and serving as a symbolic site for American civil rights and national unity.
-
D.
United Nations Headquarters
The United Nations Headquarters is the main administrative and diplomatic center of the UN, where representatives of member states convene to discuss and address global issues.
-
E.
Harry S. Truman National Historic Site
Harry S. Truman National Historic Site is a preserved historic property in Independence, Missouri, that includes the longtime home and related sites associated with the 33rd U.S. president, Harry S. Truman.
- F. None of above. chosen
Statements (48)
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: Pentagon Description of subject: The Pentagon is the five-sided headquarters of the United States Department of Defense and a symbol of the U.S. military.
Referenced by (294)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
subject surface form:
American Airlines Flight 77
this entity surface form:
The Pentagon
subject surface form:
American Airlines Flight 77
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
this entity surface form:
United States Department of Defense headquarters
this entity surface form:
The Pentagon
subject surface form:
United States Army
this entity surface form:
The Pentagon, Arlington, Virginia
subject surface form:
United States Navy
this entity surface form:
The Pentagon, Arlington, Virginia
this entity surface form:
The Pentagon
subject surface form:
Senior Enlisted Advisor to the Chairman
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
subject surface form:
Assistant Commandant of the Marine Corps
this entity surface form:
The Pentagon, Arlington, Virginia
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
Office of the Assistant Chief of Staff for Installation Management
→
headquartersLocation
→
Pentagon
ⓘ
this entity surface form:
The Pentagon
this entity surface form:
United States Department of Defense headquarters
subject surface form:
World Trade Center Health Program
this entity surface form:
Pentagon attack site
Office of the Assistant Secretary of the Army for Acquisition, Logistics and Technology
→
location
→
Pentagon
ⓘ
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
subject surface form:
Washington, D.C.
this entity surface form:
United States Department of Defense (Pentagon vicinity)
Assistant Secretary of the Air Force for Acquisition, Technology and Logistics
→
locatedIn
→
Pentagon
ⓘ
this entity surface form:
The Pentagon
subject surface form:
United States Department of Defense position
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon
this entity surface form:
The Pentagon