Black Hawk County, Iowa
E357779
Black Hawk County, Iowa is a populous county in northeastern Iowa known for its county seat of Waterloo and its role as a regional center for industry, education, and commerce.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Black Hawk County, Iowa canonical | 27 |
How this entity was disambiguated
This entity first appeared as the object of triple T1929488 — 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: Black Hawk County, Iowa Context triple: [Iowa's 1st congressional district, containsCounty, Black Hawk County, Iowa]
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A.
Sioux County, Iowa
Sioux County, Iowa is a rural county in northwestern Iowa known for its strong Dutch-American heritage and agricultural economy.
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B.
Winneshiek County, Iowa
Winneshiek County, Iowa is a northeastern Iowa county known for its scenic Driftless Area landscape, Norwegian-American heritage, and county seat of Decorah.
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C.
Mahaska County, Iowa
Mahaska County, Iowa is a rural county in the southeastern part of the state known for its agricultural economy and county seat of Oskaloosa.
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D.
Poweshiek County, Iowa
Poweshiek County, Iowa is a rural county in central Iowa known for its agricultural landscape and for being home to Grinnell College in the city of Grinnell.
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E.
Pottawattamie County, Iowa
Pottawattamie County, Iowa is a county in the southwestern part of the state, known for its county seat and largest city, Council Bluffs, which lies across the Missouri River from Omaha, Nebraska.
- 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: Black Hawk County, Iowa Target entity description: Black Hawk County, Iowa is a populous county in northeastern Iowa known for its county seat of Waterloo and its role as a regional center for industry, education, and commerce.
-
A.
Sioux County, Iowa
Sioux County, Iowa is a rural county in northwestern Iowa known for its strong Dutch-American heritage and agricultural economy.
-
B.
Winneshiek County, Iowa
Winneshiek County, Iowa is a northeastern Iowa county known for its scenic Driftless Area landscape, Norwegian-American heritage, and county seat of Decorah.
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C.
Mahaska County, Iowa
Mahaska County, Iowa is a rural county in the southeastern part of the state known for its agricultural economy and county seat of Oskaloosa.
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D.
Poweshiek County, Iowa
Poweshiek County, Iowa is a rural county in central Iowa known for its agricultural landscape and for being home to Grinnell College in the city of Grinnell.
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E.
Pottawattamie County, Iowa
Pottawattamie County, Iowa is a county in the southwestern part of the state, known for its county seat and largest city, Council Bluffs, which lies across the Missouri River from Omaha, Nebraska.
- F. None of above. chosen
Statements (44)
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: Black Hawk County, Iowa Description of subject: Black Hawk County, Iowa is a populous county in northeastern Iowa known for its county seat of Waterloo and its role as a regional center for industry, education, and commerce.
Referenced by (27)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Waterloo Regional Airport