Sangamon River valley
E1291931
UNEXPLORED
The Sangamon River valley is a geographic region in central Illinois characterized by the course and floodplain of the Sangamon River, encompassing rural landscapes, farmland, and small communities.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sangamon River valley canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T17824863 — 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: Sangamon River valley Context triple: [Menard County, Illinois, locatedInRegion, Sangamon River valley]
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A.
Illinois River Valley
The Illinois River Valley is a prominent Midwestern river valley in the U.S. state of Illinois, characterized by its broad floodplains, rich agricultural land, and historical role as a transportation and trade corridor.
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B.
Iowa River valley
The Iowa River valley is a fertile river corridor in eastern Iowa characterized by its agricultural landscapes, small towns, and floodplain ecosystems shaped by the Iowa River.
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C.
Rock River valley
Rock River valley is a historically significant river valley region in the Upper Midwest of the United States, known as a traditional homeland and cultural landscape of the Ho-Chunk people.
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D.
Wabash Valley
Wabash Valley is a geographic and cultural region in the Midwest centered around the Wabash River, encompassing parts of western Indiana and eastern Illinois.
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E.
Illinois River basin
The Illinois River basin is a major Midwestern U.S. watershed that drains much of Illinois and parts of neighboring states into the Illinois River, supporting extensive agricultural, urban, and ecological systems.
- 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: Sangamon River valley Target entity description: The Sangamon River valley is a geographic region in central Illinois characterized by the course and floodplain of the Sangamon River, encompassing rural landscapes, farmland, and small communities.
-
A.
Illinois River Valley
The Illinois River Valley is a prominent Midwestern river valley in the U.S. state of Illinois, characterized by its broad floodplains, rich agricultural land, and historical role as a transportation and trade corridor.
-
B.
Iowa River valley
The Iowa River valley is a fertile river corridor in eastern Iowa characterized by its agricultural landscapes, small towns, and floodplain ecosystems shaped by the Iowa River.
-
C.
Rock River valley
Rock River valley is a historically significant river valley region in the Upper Midwest of the United States, known as a traditional homeland and cultural landscape of the Ho-Chunk people.
-
D.
Wabash Valley
Wabash Valley is a geographic and cultural region in the Midwest centered around the Wabash River, encompassing parts of western Indiana and eastern Illinois.
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E.
Illinois River basin
The Illinois River basin is a major Midwestern U.S. watershed that drains much of Illinois and parts of neighboring states into the Illinois River, supporting extensive agricultural, urban, and ecological systems.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.