United States Naval Observatory grounds
E123672
The United States Naval Observatory grounds are a secure federal compound in northwest Washington, D.C., housing the U.S. Naval Observatory and the official residence of the U.S. vice president.
All labels observed (4)
| Label | Occurrences |
|---|---|
| U.S. Naval Observatory (new building) | 2 |
| Observatory Circle, Washington, D.C. | 1 |
| U.S. Naval Observatory area | 1 |
| United States Naval Observatory grounds canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1024468 — 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: United States Naval Observatory grounds Context triple: [Massachusetts Avenue NW, passesNear, United States Naval Observatory grounds]
-
A.
Goodsell Observatory
Goodsell Observatory is a historic astronomical observatory on the campus of Carleton College in Northfield, Minnesota, known for its distinctive Romanesque architecture and long-standing role in teaching and research in astronomy.
-
B.
United States Capitol grounds
The United States Capitol grounds are the landscaped area surrounding the U.S. Capitol building in Washington, D.C., encompassing important monuments, plazas, and public spaces that serve as a focal point of American government and civic life.
-
C.
Addison Circle Park
Addison Circle Park is a central urban green space in Addison, Texas, known for its modern design, public art, and frequent community events and festivals.
-
D.
Capitol Park
Capitol Park is a large, landscaped public park surrounding the California State Capitol in Sacramento, featuring memorials, monuments, and diverse botanical collections.
-
E.
Hat Creek Radio Observatory
Hat Creek Radio Observatory is a radio astronomy facility in Northern California known for hosting the Allen Telescope Array used in both astronomical and SETI research.
- 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: United States Naval Observatory grounds Target entity description: The United States Naval Observatory grounds are a secure federal compound in northwest Washington, D.C., housing the U.S. Naval Observatory and the official residence of the U.S. vice president.
-
A.
Goodsell Observatory
Goodsell Observatory is a historic astronomical observatory on the campus of Carleton College in Northfield, Minnesota, known for its distinctive Romanesque architecture and long-standing role in teaching and research in astronomy.
-
B.
United States Capitol grounds
The United States Capitol grounds are the landscaped area surrounding the U.S. Capitol building in Washington, D.C., encompassing important monuments, plazas, and public spaces that serve as a focal point of American government and civic life.
-
C.
Addison Circle Park
Addison Circle Park is a central urban green space in Addison, Texas, known for its modern design, public art, and frequent community events and festivals.
-
D.
Capitol Park
Capitol Park is a large, landscaped public park surrounding the California State Capitol in Sacramento, featuring memorials, monuments, and diverse botanical collections.
-
E.
Hat Creek Radio Observatory
Hat Creek Radio Observatory is a radio astronomy facility in Northern California known for hosting the Allen Telescope Array used in both astronomical and SETI research.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
campus
ⓘ
federal compound ⓘ government facility ⓘ secured area ⓘ |
| access | restricted ⓘ |
| category |
Astronomical observatories in Washington, D.C.
ⓘ
Government buildings in Washington, D.C. ⓘ Official residences in the United States ⓘ United States Navy installations ⓘ
linked to:
United States Navy shore establishment
|
| contains |
Number One Observatory Circle
ⓘ
United States Naval Observatory ⓘ administrative buildings ⓘ astronomical observatory facilities ⓘ official residence of the vice president of the United States ⓘ security facilities ⓘ |
| country | United States of America ⓘ |
| hasFunction |
house the official residence of the U.S. vice president
ⓘ
support astronomical observations ⓘ support timekeeping operations ⓘ |
| locatedIn |
District of Columbia
ⓘ
Washington, D.C. ⓘ northwest Washington, D.C. ⓘ
linked to:
Northwest Washington, D.C.
|
| near |
Embassy Row
ⓘ
Massachusetts Avenue NW ⓘ |
| operatedBy |
United States Naval Observatory
ⓘ
United States Navy ⓘ |
| ownedBy |
United States federal government
ⓘ
linked to:
United States government
|
| partOf | federal properties in Washington, D.C. ⓘ |
| securityStatus | secure compound ⓘ |
| streetAddress |
Number One Observatory Circle (vice president’s residence address within the grounds)
ⓘ
linked to:
Number One Observatory Circle
|
| usedBy |
United States Naval Observatory staff
ⓘ
United States Navy personnel ⓘ vice president of the United States ⓘ
linked to:
Vice President of the United States
|
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: United States Naval Observatory grounds Description of subject: The United States Naval Observatory grounds are a secure federal compound in northwest Washington, D.C., housing the U.S. Naval Observatory and the official residence of the U.S. vice president.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: United States Naval Observatory grounds
linked to: United States Naval Observatory grounds
linked to: United States Naval Observatory grounds
linked to: United States Naval Observatory grounds