Denison, Iowa, United States
E575232
Denison, Iowa, United States is a small Midwestern city in Crawford County known as the birthplace of climate scientist James Hansen and for its agricultural and railroad heritage.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Denison, Iowa | 4 |
| Denison, Iowa, United States canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6193042 — 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: Denison, Iowa, United States Context triple: [James Hansen, placeOfBirth, Denison, Iowa, United States]
-
A.
Denver, Iowa
Denver, Iowa is a small city in Bremer County known for its close-knit community, quality schools, and location within northeastern Iowa’s Cedar Valley region.
-
B.
Lowden, Iowa
Lowden, Iowa is a small rural city in eastern Iowa known for its agricultural surroundings and tight-knit community.
-
C.
Grinnell, Iowa
Grinnell, Iowa is a small city in central Iowa best known as the home of Grinnell College, a highly regarded liberal arts institution.
-
D.
Adair, Iowa
Adair, Iowa is a small city in southwestern Iowa known for its historic railroad roots and rural Midwestern character.
-
E.
Shenandoah, Iowa
Shenandoah, Iowa is a small city in southwestern Iowa known historically as a regional agricultural and broadcasting center.
- 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: Denison, Iowa, United States Target entity description: Denison, Iowa, United States is a small Midwestern city in Crawford County known as the birthplace of climate scientist James Hansen and for its agricultural and railroad heritage.
-
A.
Denver, Iowa
Denver, Iowa is a small city in Bremer County known for its close-knit community, quality schools, and location within northeastern Iowa’s Cedar Valley region.
-
B.
Lowden, Iowa
Lowden, Iowa is a small rural city in eastern Iowa known for its agricultural surroundings and tight-knit community.
-
C.
Grinnell, Iowa
Grinnell, Iowa is a small city in central Iowa best known as the home of Grinnell College, a highly regarded liberal arts institution.
-
D.
Adair, Iowa
Adair, Iowa is a small city in southwestern Iowa known for its historic railroad roots and rural Midwestern character.
-
E.
Shenandoah, Iowa
Shenandoah, Iowa is a small city in southwestern Iowa known historically as a regional agricultural and broadcasting center.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | city ⓘ |
| areaCode | 712 ⓘ |
| climate | humid continental climate ⓘ |
| coordinates | approximately 42.017°N 95.355°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| economyBasedOn |
agriculture
ⓘ
food processing ⓘ livestock production ⓘ |
| elevation | approximately 1,280 feet ⓘ |
| FIPSCode | 19-19965 ⓘ |
| foundedIn | 1856 ⓘ |
| GNISFeatureID | 0455610 ⓘ |
| governmentType | mayor–council government ⓘ |
| hasCulturalAttraction | Donna Reed Center for the Performing Arts NERFINISHED ⓘ |
| hasEducationalInstitution |
Denison Community School District
NERFINISHED
ⓘ
Denison-Schleswig Community School District NERFINISHED ⓘ |
| hasHeritage |
agricultural heritage
ⓘ
railroad heritage ⓘ |
| hasHighway |
U.S. Route 30
NERFINISHED
ⓘ
U.S. Route 59 NERFINISHED ⓘ |
| hasHospital | Crawford County Memorial Hospital NERFINISHED ⓘ |
| hasMuseum | Crawford County Historical Museum NERFINISHED ⓘ |
| hasNewspaper | Denison Bulletin & Review NERFINISHED ⓘ |
| hasNotablePerson |
Donna Reed
NERFINISHED
ⓘ
James Hansen NERFINISHED ⓘ |
| hasPark | Yellow Smoke Park (nearby) NERFINISHED ⓘ |
| hasPublicLibrary | Norelius Community Library NERFINISHED ⓘ |
| hasRailService | Union Pacific Railroad NERFINISHED ⓘ |
| hasRiver |
Boyer River
NERFINISHED
ⓘ
East Boyer River NERFINISHED ⓘ |
| incorporatedIn | 1875 ⓘ |
| isBirthplaceOf |
Donna Reed
NERFINISHED
ⓘ
James Hansen NERFINISHED ⓘ |
| isCountySeatOf | Crawford County, Iowa NERFINISHED ⓘ |
| locatedIn |
Crawford County, Iowa
NERFINISHED
ⓘ
Iowa ⓘ Midwestern United States ⓘ |
| namedFor | George Denison NERFINISHED ⓘ |
| partOf |
Crawford County, Iowa
NERFINISHED
ⓘ
Iowa ⓘ
surface form:
State of Iowa
|
| populationEstimate | around 8,000 residents ⓘ |
| postalCode | 51442 ⓘ |
| regionCode | US-IA NERFINISHED ⓘ |
| servedBy | Denison Municipal Airport NERFINISHED ⓘ |
| timeZone | Central Time Zone ⓘ |
| timeZoneDST |
Central Time Zone
ⓘ
surface form:
Central Daylight Time
|
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: Denison, Iowa, United States Description of subject: Denison, Iowa, United States is a small Midwestern city in Crawford County known as the birthplace of climate scientist James Hansen and for its agricultural and railroad heritage.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Western Iowa
this entity surface form:
Denison, Iowa
subject surface form:
Central Iowa
this entity surface form:
Denison, Iowa
this entity surface form:
Denison, Iowa
this entity surface form:
Denison, Iowa