George Washington’s tomb at Mount Vernon
E105440
George Washington’s tomb at Mount Vernon is the marble and brick burial vault on his Virginia plantation estate where the first U.S. president and his wife, Martha Washington, are interred.
All labels observed (4)
| Label | Occurrences |
|---|---|
| George Washington died there in 1799 | 1 |
| George Washington’s tomb at Mount Vernon canonical | 1 |
| Washington family tomb | 1 |
| tombs of George and Martha Washington | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T889221 — 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: George Washington’s tomb at Mount Vernon Context triple: [Mount Vernon Ladies’ Association, hasPart, George Washington’s tomb at Mount Vernon]
-
A.
Hamilton Mausoleum
Hamilton Mausoleum is a grand 19th-century stone mausoleum in Hamilton, Scotland, famed for its towering dome and remarkable acoustic echo.
-
B.
Francis Scott Key gravesite
The Francis Scott Key gravesite is the memorial and burial place of the author of the U.S. national anthem, located in Mount Olivet Cemetery in Frederick, Maryland.
-
C.
Lincoln Tomb
Lincoln Tomb is the monumental burial site of U.S. President Abraham Lincoln and his family, located in Springfield, Illinois.
-
D.
Herbert Hoover Gravesite
The Herbert Hoover Gravesite is the burial place of the 31st U.S. president, Herbert Hoover, and his wife Lou Henry Hoover, located within the Herbert Hoover National Historic Site in West Branch, Iowa.
-
E.
Arlington National Cemetery
Arlington National Cemetery is a United States military cemetery and national memorial site where many American service members and notable figures are buried.
- 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: George Washington’s tomb at Mount Vernon Target entity description: George Washington’s tomb at Mount Vernon is the marble and brick burial vault on his Virginia plantation estate where the first U.S. president and his wife, Martha Washington, are interred.
-
A.
Hamilton Mausoleum
Hamilton Mausoleum is a grand 19th-century stone mausoleum in Hamilton, Scotland, famed for its towering dome and remarkable acoustic echo.
-
B.
Francis Scott Key gravesite
The Francis Scott Key gravesite is the memorial and burial place of the author of the U.S. national anthem, located in Mount Olivet Cemetery in Frederick, Maryland.
-
C.
Lincoln Tomb
Lincoln Tomb is the monumental burial site of U.S. President Abraham Lincoln and his family, located in Springfield, Illinois.
-
D.
Herbert Hoover Gravesite
The Herbert Hoover Gravesite is the burial place of the 31st U.S. president, Herbert Hoover, and his wife Lou Henry Hoover, located within the Herbert Hoover National Historic Site in West Branch, Iowa.
-
E.
Arlington National Cemetery
Arlington National Cemetery is a United States military cemetery and national memorial site where many American service members and notable figures are buried.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
burial vault
ⓘ
historic site ⓘ tomb ⓘ |
| accessibleTo | visitors ⓘ |
| architecturalStyle | simple brick vault ⓘ |
| associatedWith |
American Revolution
ⓘ
linked to:
American Revolutionary War
U.S. presidency ⓘ |
| burialPlaceOf |
George Washington
ⓘ
Martha Washington ⓘ |
| commemorates | George Washington ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| function | interment of George and Martha Washington ⓘ |
| governedBy | preservation guidelines of Mount Vernon Ladies’ Association ⓘ |
| hasBurial |
George Washington
ⓘ
Martha Washington ⓘ |
| hasContext | part of a working historic plantation museum ⓘ |
| hasFeature |
enclosed burial chamber
ⓘ
iron gate at entrance ⓘ marble sarcophagi ⓘ |
| hasGraveMarker |
marble sarcophagus of George Washington
ⓘ
marble sarcophagus of Martha Washington ⓘ |
| hasInscription | commemorative text honoring George Washington ⓘ |
| hasName |
Washington family tomb
ⓘ
linked to:
George Washington’s tomb at Mount Vernon
|
| hasSecurity | gated enclosure ⓘ |
| hasType | presidential tomb ⓘ |
| hasVisitorPractice | wreath-laying ceremonies ⓘ |
| heritageDesignation | National Historic Landmark contributing property ⓘ |
| isOn | Potomac River plantation estate ⓘ |
| isPartOf |
Mount Vernon historic area
ⓘ
linked to:
Mount Vernon, Virginia
|
| locatedIn |
Fairfax County, Virginia
ⓘ
Mount Vernon ⓘ
linked to:
Mount Vernon, Virginia
United States ⓘ
linked to:
United States of America
Virginia ⓘ |
| material |
brick
ⓘ
marble ⓘ |
| near |
George Washington’s mansion at Mount Vernon
ⓘ
linked to:
Mount Vernon, Virginia
|
| notableFor | being the burial place of the first U.S. president ⓘ |
| ownedBy | Mount Vernon Ladies’ Association ⓘ |
| partOf |
Mount Vernon estate
ⓘ
linked to:
Mount Vernon, Virginia
|
| significance | final resting place of the first president of the United States ⓘ |
| touristAttraction | yes ⓘ |
| use | presidential burial site ⓘ |
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: George Washington’s tomb at Mount Vernon Description of subject: George Washington’s tomb at Mount Vernon is the marble and brick burial vault on his Virginia plantation estate where the first U.S. president and his wife, Martha Washington, are interred.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: George Washington’s tomb at Mount Vernon
linked to: George Washington’s tomb at Mount Vernon
linked to: George Washington’s tomb at Mount Vernon