Jefferson National Expansion Memorial
E184010
Jefferson National Expansion Memorial was the former name of the St. Louis riverfront park that includes the Gateway Arch and commemorates the westward expansion of the United States.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T1596355 — 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: Jefferson National Expansion Memorial Context triple: [Gateway Arch, previousNameOfPark, Jefferson National Expansion Memorial]
-
A.
MacArthur Memorial
The MacArthur Memorial is a museum and final resting place in Norfolk, Virginia, dedicated to the life, military career, and legacy of U.S. General Douglas MacArthur.
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B.
Jefferson Barracks, Missouri
Jefferson Barracks, Missouri is a historic U.S. Army post near St. Louis that served as a key military installation and training center throughout the 19th and 20th centuries.
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C.
Statue of Liberty National Monument
The Statue of Liberty National Monument is a U.S. national monument encompassing the iconic Statue of Liberty and surrounding areas in New York Harbor, symbolizing freedom and democracy.
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D.
Centre des monuments nationaux
The Centre des monuments nationaux is a French public institution responsible for managing, preserving, and opening to the public many of France’s most important historic monuments and sites.
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E.
Lewis and Clark National Historical Park
Lewis and Clark National Historical Park is a U.S. National Park that preserves sites along the Pacific Coast associated with the 1804–1806 Lewis and Clark Expedition, including Fort Clatsop near the mouth of the Columbia River.
- 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: Jefferson National Expansion Memorial Target entity description: Jefferson National Expansion Memorial was the former name of the St. Louis riverfront park that includes the Gateway Arch and commemorates the westward expansion of the United States.
-
A.
MacArthur Memorial
The MacArthur Memorial is a museum and final resting place in Norfolk, Virginia, dedicated to the life, military career, and legacy of U.S. General Douglas MacArthur.
-
B.
Jefferson Barracks, Missouri
Jefferson Barracks, Missouri is a historic U.S. Army post near St. Louis that served as a key military installation and training center throughout the 19th and 20th centuries.
-
C.
Statue of Liberty National Monument
The Statue of Liberty National Monument is a U.S. national monument encompassing the iconic Statue of Liberty and surrounding areas in New York Harbor, symbolizing freedom and democracy.
-
D.
Centre des monuments nationaux
The Centre des monuments nationaux is a French public institution responsible for managing, preserving, and opening to the public many of France’s most important historic monuments and sites.
-
E.
Lewis and Clark National Historical Park
Lewis and Clark National Historical Park is a U.S. National Park that preserves sites along the Pacific Coast associated with the 1804–1806 Lewis and Clark Expedition, including Fort Clatsop near the mouth of the Columbia River.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
historic district
ⓘ
national memorial ⓘ protected area ⓘ |
| administeredBy | National Park Service ⓘ |
| architecturalStyleOfMainStructure | modernist ⓘ |
| associatedWithPresident | Thomas Jefferson ⓘ |
| authorizedBy | United States Congress ⓘ |
| category |
Monuments and memorials in Missouri
ⓘ
Parks in St. Louis, Missouri ⓘ Protected areas on the Mississippi River ⓘ United States national memorials ⓘ |
| city |
St. Louis
ⓘ
linked to:
St. Louis, Missouri, United States
|
| commemorates |
Louisiana Purchase
ⓘ
westward expansion of the United States ⓘ |
| containsStructureDesignedBy | Eero Saarinen ⓘ |
| containsStructureEngineeredBy | Hannskarl Bandel NERFINISHED ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currentName |
Gateway Arch National Park
ⓘ
linked to:
Gateway Arch
|
| designationChangedTo |
Gateway Arch National Park
ⓘ
linked to:
Gateway Arch
|
| designationChangeYear | 2018 ⓘ |
| established | 1935 ⓘ |
| formerDesignation | national memorial ⓘ |
| formerNameOf |
Gateway Arch National Park
ⓘ
linked to:
Gateway Arch
|
| governingBody | National Park Service ⓘ |
| hasMuseum | Museum of Westward Expansion ⓘ |
| hasPart |
Gateway Arch
ⓘ
Museum of Westward Expansion ⓘ Old Courthouse ⓘ |
| hasVisitorCenter |
Gateway Arch Visitor Center
ⓘ
linked to:
Gateway Arch
|
| locatedIn |
Missouri
ⓘ
St. Louis ⓘ
linked to:
St. Louis, Missouri, United States
United States ⓘ
linked to:
United States of America
|
| locatedOn |
Mississippi River waterfront
ⓘ
linked to:
Mississippi riverfront
|
| namedAfter | Thomas Jefferson ⓘ |
| NRHPType | National Historic Landmark District ⓘ |
| partOf |
National Park System
ⓘ
linked to:
United States National Park System
|
| primaryAttraction | Gateway Arch ⓘ |
| purpose | to commemorate the role of St. Louis in the westward expansion of the United States ⓘ |
| region | Midwestern United States ⓘ |
| state | Missouri ⓘ |
| theme |
American frontier history
ⓘ
exploration and settlement of the American West ⓘ |
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: Jefferson National Expansion Memorial Description of subject: Jefferson National Expansion Memorial was the former name of the St. Louis riverfront park that includes the Gateway Arch and commemorates the westward expansion of the United States.
Referenced by (24)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Old Courthouse
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
subject linked to:
United States state of Missouri
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
linked to: Jefferson National Expansion Memorial
National Historic Landmarks in Missouri
→
contains
→
Jefferson National Expansion Memorial Historic Site
ⓘ
linked to: Jefferson National Expansion Memorial