Cedar River
E102041
Cedar River is a major river in Iowa and Minnesota known for flowing through cities like Cedar Rapids and contributing significantly to the region’s ecology and economy.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Cedar River canonical | 46 |
| Cedar River watershed | 4 |
| Cedar River Valley | 2 |
| Cedar River (vicinity) | 1 |
| Cedar River valley | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T329986 — 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: Cedar River Context triple: [Cedar County, Iowa, namedAfter, Cedar River]
-
A.
Menominee River
The Menominee River is a major river forming part of the border between Wisconsin and Michigan’s Upper Peninsula, known for its forests, hydroelectric dams, and role as a key tributary in the Great Lakes watershed.
-
B.
Iowa River
The Iowa River is a major waterway in the U.S. state of Iowa that flows generally southeastward and ultimately joins the Mississippi River.
-
C.
Sauk
The Sauk are a Native American people originally from the Great Lakes region, known for their resistance to U.S. expansion and their prominent leader Black Hawk.
-
D.
Minnesota River
The Minnesota River is a major tributary of the Mississippi River in southern Minnesota, flowing through agricultural and prairie landscapes before joining the Mississippi near the Twin Cities.
-
E.
Pound River
The Pound River is a tributary stream in New York State that feeds into the Croton River within the Croton River watershed.
- 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: Cedar River Target entity description: Cedar River is a major river in Iowa and Minnesota known for flowing through cities like Cedar Rapids and contributing significantly to the region’s ecology and economy.
-
A.
Menominee River
The Menominee River is a major river forming part of the border between Wisconsin and Michigan’s Upper Peninsula, known for its forests, hydroelectric dams, and role as a key tributary in the Great Lakes watershed.
-
B.
Iowa River
The Iowa River is a major waterway in the U.S. state of Iowa that flows generally southeastward and ultimately joins the Mississippi River.
-
C.
Sauk
The Sauk are a Native American people originally from the Great Lakes region, known for their resistance to U.S. expansion and their prominent leader Black Hawk.
-
D.
Minnesota River
The Minnesota River is a major tributary of the Mississippi River in southern Minnesota, flowing through agricultural and prairie landscapes before joining the Mississippi near the Twin Cities.
-
E.
Pound River
The Pound River is a tributary stream in New York State that feeds into the Croton River within the Croton River watershed.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| affects |
regional ecology of eastern Iowa
ⓘ
regional economy of eastern Iowa ⓘ |
| basinCountry | United States of America ⓘ |
| country | United States of America ⓘ |
| crossesAdministrativeRegion |
Black Hawk County, Iowa
ⓘ
Bremer County, Iowa ⓘ Linn County, Iowa ⓘ Mower County, Minnesota ⓘ |
| flowsThrough |
Austin, Minnesota
ⓘ
Cedar Rapids, Iowa ⓘ Charles City, Iowa ⓘ Waterloo, Iowa ⓘ Waverly, Iowa ⓘ |
| hasEcosystemService |
fish habitat
ⓘ
recharge of local aquifers ⓘ riparian wetlands ⓘ |
| hasFloodEvent | 2008 Iowa flood ⓘ |
| hasPart |
Lake Washington–Cedar River watershed
ⓘ
surface form:
Cedar River watershed
|
| locatedIn |
Iowa
ⓘ
Minnesota ⓘ |
| locatedInWatershed | Mississippi River basin ⓘ |
| mouthLocation | Iowa River ⓘ |
| notableFor |
flood risk in Cedar Rapids
ⓘ
role in transportation and settlement patterns in eastern Iowa ⓘ |
| sourceLocation | southern Minnesota ⓘ |
| tributaryOf | Iowa River ⓘ |
| usedFor |
floodplain agriculture
ⓘ
municipal water supply ⓘ recreation ⓘ |
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: Cedar River Description of subject: Cedar River is a major river in Iowa and Minnesota known for flowing through cities like Cedar Rapids and contributing significantly to the region’s ecology and economy.
Referenced by (54)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Cedar River Valley