Sagamore Hill
E92777
Sagamore Hill is the historic Long Island estate that served as President Theodore Roosevelt’s primary home and the “Summer White House” during his presidency.
All labels observed (8)
How this entity was disambiguated
This entity first appeared as the object of triple T734118 — 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: Sagamore Hill Context triple: [Theodore Roosevelt, residence, Sagamore Hill]
-
A.
Roosevelt’s Little White House
Roosevelt’s Little White House is the historic retreat in Warm Springs, Georgia, where President Franklin D. Roosevelt sought polio treatment, spent much of his presidency, and ultimately died in 1945.
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B.
Woodrow Wilson House
Woodrow Wilson House is a historic museum in Washington, D.C., preserved as the former residence of U.S. President Woodrow Wilson after his presidency.
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C.
Harry S. Truman Little White House
The Harry S. Truman Little White House is a historic residence and museum in Key West that served as President Harry S. Truman’s winter White House and retreat.
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D.
Eleanor Roosevelt National Historic Site
Eleanor Roosevelt National Historic Site is a preserved estate in Hyde Park, New York, that commemorates the life and legacy of former First Lady Eleanor Roosevelt, featuring her home, Val-Kill Cottage, and surrounding grounds.
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E.
Hillwood
Hillwood is a real estate development company known for large-scale industrial, commercial, and mixed-use projects across the United States.
- 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: Sagamore Hill Target entity description: Sagamore Hill is the historic Long Island estate that served as President Theodore Roosevelt’s primary home and the “Summer White House” during his presidency.
-
A.
Roosevelt’s Little White House
Roosevelt’s Little White House is the historic retreat in Warm Springs, Georgia, where President Franklin D. Roosevelt sought polio treatment, spent much of his presidency, and ultimately died in 1945.
-
B.
Woodrow Wilson House
Woodrow Wilson House is a historic museum in Washington, D.C., preserved as the former residence of U.S. President Woodrow Wilson after his presidency.
-
C.
Harry S. Truman Little White House
The Harry S. Truman Little White House is a historic residence and museum in Key West that served as President Harry S. Truman’s winter White House and retreat.
-
D.
Eleanor Roosevelt National Historic Site
Eleanor Roosevelt National Historic Site is a preserved estate in Hyde Park, New York, that commemorates the life and legacy of former First Lady Eleanor Roosevelt, featuring her home, Val-Kill Cottage, and surrounding grounds.
-
E.
Hillwood
Hillwood is a real estate development company known for large-scale industrial, commercial, and mixed-use projects across the United States.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
historic house
ⓘ
historic site ⓘ museum ⓘ |
| addedToNationalRegisterOfHistoricPlaces | 1966 ⓘ |
| architecturalStyle | Queen Anne architecture ⓘ |
| area | approximately 83 acres ⓘ |
| associatedWith |
Roosevelt family
ⓘ
Theodore Roosevelt ⓘ |
| category |
Historic house museums in New York
ⓘ
National Historic Sites in New York ⓘ Presidential homes in the United States ⓘ |
| completedIn | 1885 ⓘ |
| constructionStart | 1884 ⓘ |
| country | United States of America ⓘ |
| designation | National Historic Site ⓘ |
| hasFeature |
Roosevelt’s library
ⓘ
Roosevelt’s trophy room ⓘ meadows ⓘ orchards ⓘ wooded grounds ⓘ |
| hasFunction |
historic house museum
ⓘ
house museum ⓘ |
| hasOutbuilding | Old Orchard home ⓘ |
| locatedIn |
Long Island
ⓘ
Nassau County, New York ⓘ Oyster Bay, New York ⓘ
linked to:
Oyster Bay
|
| managedBy |
U.S. Department of the Interior
ⓘ
linked to:
United States Department of the Interior
|
| namedAfter | Sagamore (Algonquian term for chief) ⓘ |
| nearestCity | Oyster Bay ⓘ |
| notableResident |
Edith Kermit Carow Roosevelt
ⓘ
Theodore Roosevelt ⓘ |
| numberOfRooms | 23 ⓘ |
| openToPublic | true ⓘ |
| operatedBy | National Park Service ⓘ |
| owner | Theodore Roosevelt ⓘ |
| partOf |
Sagamore Hill National Historic Site
ⓘ
linked to:
Sagamore Hill
|
| periodOfUseAsSummerWhiteHouse | 1902–1908 ⓘ |
| significantEvent | site of many presidential meetings and decisions during Theodore Roosevelt’s presidency ⓘ |
| timePeriodOfSignificance |
early 20th century
ⓘ
late 19th century ⓘ |
| tourType |
guided house tours
ⓘ
self-guided grounds tours ⓘ |
| usedAs |
Summer White House
ⓘ
linked to:
Western White House
primary residence of Theodore Roosevelt ⓘ |
| usedBy | Theodore Roosevelt ⓘ |
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: Sagamore Hill Description of subject: Sagamore Hill is the historic Long Island estate that served as President Theodore Roosevelt’s primary home and the “Summer White House” during his presidency.
Referenced by (23)
Full triples — surface form annotated when it differs from this entity's canonical label.
New York State Office of Parks, Recreation and Historic Preservation
→
operates
→
Sagamore Hill National Historic Site (in partnership with the National Park Service)
ⓘ
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
subject linked to:
Theodore Roosevelt; 88
linked to: Sagamore Hill
subject linked to:
Youngs Memorial Cemetery, Oyster Bay, New York
linked to: Sagamore Hill
subject linked to:
Long Island, New York
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill
linked to: Sagamore Hill