Capitol Visitor Center
E10042
The Capitol Visitor Center is an underground facility in Washington, D.C. that serves as the main public entrance and educational hub for visitors to the United States Capitol.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T21421 — 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: Capitol Visitor Center Context triple: [United States Capitol, hasPart, Capitol Visitor Center]
-
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.
Steven F. Udvar-Hazy Center
The Steven F. Udvar-Hazy Center is a Smithsonian National Air and Space Museum annex in Virginia that houses large aviation and space artifacts, including the space shuttle Discovery and the Enola Gay.
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C.
National Archives Building
The National Archives Building is a historic federal building in Washington, D.C. that houses and displays foundational U.S. documents such as the Declaration of Independence, the Constitution, and the Bill of Rights.
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D.
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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E.
National Mall
The National Mall is a large, historic park in the heart of Washington, D.C., known for its iconic monuments, memorials, and museums that symbolize American history and democracy.
- 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: Capitol Visitor Center Target entity description: The Capitol Visitor Center is an underground facility in Washington, D.C. that serves as the main public entrance and educational hub for visitors to the United States Capitol.
-
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.
Steven F. Udvar-Hazy Center
The Steven F. Udvar-Hazy Center is a Smithsonian National Air and Space Museum annex in Virginia that houses large aviation and space artifacts, including the space shuttle Discovery and the Enola Gay.
-
C.
National Archives Building
The National Archives Building is a historic federal building in Washington, D.C. that houses and displays foundational U.S. documents such as the Declaration of Independence, the Constitution, and the Bill of Rights.
-
D.
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.
-
E.
National Mall
The National Mall is a large, historic park in the heart of Washington, D.C., known for its iconic monuments, memorials, and museums that symbolize American history and democracy.
- F. None of above. chosen
Statements (59)
| Predicate | Object |
|---|---|
| instanceOf |
museum
ⓘ
underground building ⓘ visitor center ⓘ |
| annualVisitors | millions of visitors per year ⓘ |
| architect |
HGA Architects and Engineers
ⓘ
RTKL Associates Inc. ⓘ |
| architecturalStyle | contemporary classical ⓘ |
| constructionCost | approximately 621 million U.S. dollars ⓘ |
| constructionStartDate | 2000 ⓘ |
| contains |
Emancipation Hall
ⓘ
Exhibition Hall ⓘ food service area ⓘ gift shops ⓘ meeting rooms ⓘ offices ⓘ orientation theaters ⓘ restrooms ⓘ security screening area ⓘ ticketing and information desks ⓘ |
| coordinates | 38.8898°N 77.0089°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depthBelowGround | approximately 3 to 4 stories ⓘ |
| designedTo |
enhance visitor experience at the U.S. Capitol
ⓘ
improve security for the U.S. Capitol ⓘ protect historic fabric of the Capitol building ⓘ |
| emancipationHallNameOrigin | named in honor of the emancipation of enslaved people in the United States ⓘ |
| entranceLocation | east side of the U.S. Capitol ⓘ |
| features |
interactive displays
ⓘ
large skylights with views of the Capitol dome ⓘ orientation film about Congress and the Capitol ⓘ statues from the National Statuary Hall Collection ⓘ |
| floorArea |
580000 square feet
ⓘ
approximately 54,000 square meters ⓘ |
| governingBody | Architect of the Capitol ⓘ |
| hasExhibits |
American legislative process
ⓘ
art and artifacts from the U.S. Capitol ⓘ development of the U.S. Capitol building ⓘ history of the U.S. Congress ⓘ |
| locatedIn | United States Capitol ⓘ |
| locatedInCity | Washington, D.C. ⓘ |
| locatedInComplex | United States Capitol Complex ⓘ |
| locatedInDistrict | Capitol Hill ⓘ |
| locatedUnderground | yes ⓘ |
| mainFunction |
educational facility for visitors
ⓘ
public entrance to the United States Capitol ⓘ security screening facility for Capitol visitors ⓘ |
| managedBy |
Architect of the Capitol
ⓘ
surface form:
Office of the Architect of the Capitol
|
| namedSpace | Emancipation Hall ⓘ |
| openingDate | December 2, 2008 ⓘ |
| owner | United States government ⓘ |
| publicTransitAccess |
Capitol South Metro station
ⓘ
Union Station ⓘ |
| securityRole | centralized screening point for all Capitol tours ⓘ |
| securityScreeningRequired | yes ⓘ |
| servesAs | primary point of entry for visitors to the U.S. Capitol ⓘ |
| ticketPolicy | free timed-entry passes required for tours ⓘ |
| tourType | guided tours of the U.S. Capitol ⓘ |
| visitorCapacity | approximately 4500 visitors at one time ⓘ |
| website | https://www.visitthecapitol.gov ⓘ |
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: Capitol Visitor Center Description of subject: The Capitol Visitor Center is an underground facility in Washington, D.C. that serves as the main public entrance and educational hub for visitors to the United States Capitol.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
United States Capitol Visitor Center
this entity surface form:
United States Capitol Visitor Center
this entity surface form:
Capitol Visitor Center and Capitol complex
this entity surface form:
United States Capitol Visitor Center exhibits
this entity surface form:
United States Capitol Visitor Center
this entity surface form:
United States Capitol Visitor Center
this entity surface form:
United States Capitol Visitor Center
this entity surface form:
Capitol Visitor Center expansion project
this entity surface form:
United States Capitol Visitor Center
this entity surface form:
U.S. Capitol Visitor Center
this entity surface form:
Capitol Visitor Center House office spaces
this entity surface form:
U.S. Capitol Visitor Center
this entity surface form:
Capitol Visitor experience
this entity surface form:
Capitol Visitor Center art
this entity surface form:
U.S. Capitol Visitor Center