Iowa State Capitol
E136874
The Iowa State Capitol is the historic seat of Iowa’s state government, notable for its grand 19th-century architecture and distinctive central golden dome.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Iowa State Capitol canonical | 15 |
| Iowa State Capitol Complex | 2 |
| Iowa State Capitol grounds | 2 |
| House chamber of the Iowa State Capitol | 1 |
| Iowa Senate chamber | 1 |
| State Capitol, Des Moines, Iowa | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1176727 — 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: Iowa State Capitol Context triple: [Des Moines, Iowa, contains, Iowa State Capitol]
-
A.
Nebraska State Capitol
The Nebraska State Capitol is a distinctive Art Deco-influenced skyscraper-style statehouse in Lincoln, renowned for its central tower crowned by the “Sower” statue and its innovative early 20th-century architectural design.
-
B.
Oklahoma State Capitol
The Oklahoma State Capitol is the seat of government for the U.S. state of Oklahoma, notable for its neoclassical architecture and prominent dome in Oklahoma City.
-
C.
Kansas State Capitol
The Kansas State Capitol is the historic seat of Kansas's state government, renowned for its distinctive copper dome, murals, and role as a symbol of the state's political and cultural heritage.
-
D.
Michigan State Capitol
The Michigan State Capitol is the historic seat of Michigan’s state government, renowned for its distinctive cast-iron dome and richly decorated 19th-century architecture.
-
E.
Wisconsin State Capitol
The Wisconsin State Capitol is the domed seat of Wisconsin's government, located in downtown Madison and known for its Beaux-Arts architecture and prominent position between two lakes.
- 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: Iowa State Capitol Target entity description: The Iowa State Capitol is the historic seat of Iowa’s state government, notable for its grand 19th-century architecture and distinctive central golden dome.
-
A.
Nebraska State Capitol
The Nebraska State Capitol is a distinctive Art Deco-influenced skyscraper-style statehouse in Lincoln, renowned for its central tower crowned by the “Sower” statue and its innovative early 20th-century architectural design.
-
B.
Oklahoma State Capitol
The Oklahoma State Capitol is the seat of government for the U.S. state of Oklahoma, notable for its neoclassical architecture and prominent dome in Oklahoma City.
-
C.
Kansas State Capitol
The Kansas State Capitol is the historic seat of Kansas's state government, renowned for its distinctive copper dome, murals, and role as a symbol of the state's political and cultural heritage.
-
D.
Michigan State Capitol
The Michigan State Capitol is the historic seat of Michigan’s state government, renowned for its distinctive cast-iron dome and richly decorated 19th-century architecture.
-
E.
Wisconsin State Capitol
The Wisconsin State Capitol is the domed seat of Wisconsin's government, located in downtown Madison and known for its Beaux-Arts architecture and prominent position between two lakes.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
government building
ⓘ
historic building ⓘ state capitol building ⓘ |
| architecturalStyle |
Beaux-Arts architecture
ⓘ
Renaissance Revival ⓘ
surface form:
Renaissance Revival architecture
|
| completionDate | 1886 ⓘ |
| constructionStartDate | 1871 ⓘ |
| coordinates | 41.5911°N 93.6037°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| function |
office of other state officials
ⓘ
Governor of Iowa ⓘ
surface form:
office of the Governor of Iowa
seat of the Iowa General Assembly ⓘ |
| hasArtwork |
historical murals depicting Iowa history
ⓘ
statue of pioneer figures ⓘ |
| hasDome | central golden dome ⓘ |
| hasFeature |
grand central rotunda
ⓘ
law library with ornamental ironwork ⓘ marble staircases ⓘ mosaics and murals ⓘ stained glass windows ⓘ statues and monuments on the grounds ⓘ |
| hasGroundsFeature |
memorials related to the Civil War
ⓘ
monuments honoring veterans ⓘ |
| hasView | overlooks downtown Des Moines ⓘ |
| height | approximately 275 feet ⓘ |
| heritageDesignation | listed on the National Register of Historic Places ⓘ |
| heritageDesignationDate | 1976 ⓘ |
| houses |
Iowa House of Representatives
ⓘ
surface form:
Iowa House of Representatives chamber
Iowa Senate ⓘ
surface form:
Iowa Senate chamber
Iowa Judicial Branch Building ⓘ
surface form:
Iowa Supreme Court chamber (historic)
|
| inaugurationDate | 1884 ⓘ |
| locatedIn |
Des Moines, Iowa
ⓘ
surface form:
Des Moines
|
| locatedInAdministrativeEntity | Iowa ⓘ |
| locatedInTimeZone | Central Time Zone ⓘ |
| maintainedBy | Iowa Department of Administrative Services ⓘ |
| materialOfCentralDome | gold leaf ⓘ |
| NRHPLocation | Polk County, Iowa ⓘ |
| NRHPType | building ⓘ |
| numberOfDomes | 5 ⓘ |
| numberOfFloors | 5 ⓘ |
| offers | public tours ⓘ |
| owner |
Iowa
ⓘ
surface form:
State of Iowa
|
| significance |
example of 19th-century American capitol architecture
ⓘ
symbol of Iowa state government ⓘ |
| significantEvent | used for sessions of the Iowa General Assembly ⓘ |
| touristAttraction | yes ⓘ |
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: Iowa State Capitol Description of subject: The Iowa State Capitol is the historic seat of Iowa’s state government, notable for its grand 19th-century architecture and distinctive central golden dome.
Referenced by (22)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
House chamber of the Iowa State Capitol
this entity surface form:
Iowa State Capitol Complex
subject surface form:
Central Iowa
this entity surface form:
Iowa State Capitol grounds
this entity surface form:
Iowa State Capitol grounds
this entity surface form:
State Capitol, Des Moines, Iowa
this entity surface form:
Iowa Senate chamber
this entity surface form:
Iowa State Capitol Complex