Ottumwa Coal Palace site
E928732
The Ottumwa Coal Palace site is the former location of a grand late-19th-century exhibition building in Ottumwa, Iowa, that showcased the region’s coal industry and economic prosperity.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ottumwa Coal Palace site canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11485969 — 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: Ottumwa Coal Palace site Context triple: [Ottumwa, Iowa, hasHistoricSite, Ottumwa Coal Palace site]
-
A.
Cherokee Strip Regional Heritage Center
The Cherokee Strip Regional Heritage Center is a museum and cultural facility in Enid, Oklahoma, dedicated to preserving and interpreting the history of the Cherokee Outlet and the Land Run of 1893.
-
B.
Dickson Mounds Museum
Dickson Mounds Museum is a major archaeological and anthropological museum in Illinois that interprets the history and culture of Native American peoples of the Illinois River valley.
-
C.
Flint Hills Discovery Center
Flint Hills Discovery Center is an interactive science and cultural museum dedicated to the ecology, history, and conservation of the Flint Hills tallgrass prairie region.
-
D.
Shawnee Mound, Missouri
Shawnee Mound, Missouri is a small rural unincorporated community located in Henry County in the U.S. state of Missouri.
-
E.
Fort Osage National Historic Landmark
Fort Osage National Historic Landmark is a reconstructed early 19th-century U.S. frontier fort and trading post that served as a key military and government outpost along the Missouri 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: Ottumwa Coal Palace site Target entity description: The Ottumwa Coal Palace site is the former location of a grand late-19th-century exhibition building in Ottumwa, Iowa, that showcased the region’s coal industry and economic prosperity.
-
A.
Cherokee Strip Regional Heritage Center
The Cherokee Strip Regional Heritage Center is a museum and cultural facility in Enid, Oklahoma, dedicated to preserving and interpreting the history of the Cherokee Outlet and the Land Run of 1893.
-
B.
Dickson Mounds Museum
Dickson Mounds Museum is a major archaeological and anthropological museum in Illinois that interprets the history and culture of Native American peoples of the Illinois River valley.
-
C.
Flint Hills Discovery Center
Flint Hills Discovery Center is an interactive science and cultural museum dedicated to the ecology, history, and conservation of the Flint Hills tallgrass prairie region.
-
D.
Shawnee Mound, Missouri
Shawnee Mound, Missouri is a small rural unincorporated community located in Henry County in the U.S. state of Missouri.
-
E.
Fort Osage National Historic Landmark
Fort Osage National Historic Landmark is a reconstructed early 19th-century U.S. frontier fort and trading post that served as a key military and government outpost along the Missouri River.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
former exhibition grounds
ⓘ
historic site ⓘ |
| associatedWith |
Ottumwa Coal Palace Company
NERFINISHED
ⓘ
coal operators of southeastern Iowa ⓘ |
| associatedWithIndustry | coal mining ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| currentStatus | building no longer extant ⓘ |
| hasCulturalSignificance |
example of 19th-century boosterism
ⓘ
symbol of Ottumwa’s coal era ⓘ |
| hasFormerStructure | Ottumwa Coal Palace NERFINISHED ⓘ |
| hasTheme |
celebration of coal resources
ⓘ
industrial promotion ⓘ |
| heritageDesignation | local historic interest ⓘ |
| locatedIn |
Iowa
ⓘ
Ottumwa, Iowa NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
Wapello County, Iowa NERFINISHED ⓘ |
| near | Des Moines River NERFINISHED ⓘ |
| notableFor |
hosting a grand coal-themed exhibition building
ⓘ
promoting economic development in southeastern Iowa ⓘ showcasing regional coal industry ⓘ |
| partOf |
history of Ottumwa, Iowa
ⓘ
history of coal palaces in Iowa ⓘ |
| significantEvent |
construction of Ottumwa Coal Palace
ⓘ
demolition of Ottumwa Coal Palace ⓘ |
| significantPeriod | late 19th century ⓘ |
| use |
exhibition of coal industry
ⓘ
promotion of regional economic prosperity ⓘ |
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: Ottumwa Coal Palace site Description of subject: The Ottumwa Coal Palace site is the former location of a grand late-19th-century exhibition building in Ottumwa, Iowa, that showcased the region’s coal industry and economic prosperity.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.