Ohio River basin
E269278
The Ohio River basin is a major watershed in the eastern United States that collects runoff from numerous tributaries across multiple states before ultimately feeding into the Mississippi River system.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Ohio River basin canonical | 31 |
| Ohio River watershed | 18 |
| Ohio River Valley | 9 |
| Ohio River system | 2 |
| Ohio River Basin | 1 |
| Ohio River drainage basin | 1 |
| Ohio River region | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2358100 — 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: Ohio River basin Context triple: [Interior Low Plateaus physiographic region, drainage, Ohio River basin]
-
A.
Mississippi River basin
The Mississippi River basin is the vast drainage area of the Mississippi River system, encompassing much of the central United States and parts of Canada and covering one of the largest river basins in the world.
-
B.
Yazoo River basin
The Yazoo River basin is a major drainage area in northwestern Mississippi that collects waters from the Yazoo River and its tributaries before they flow into the Mississippi River.
-
C.
Lower Mississippi River basin
The Lower Mississippi River basin is the southernmost portion of the Mississippi River drainage system, encompassing the river’s broad floodplain and delta region as it flows toward and empties into the Gulf of Mexico.
-
D.
Red River Basin
The Red River Basin is a major drainage area in the north-central United States and south-central Canada, known for the Red River of the North and its frequent flooding across parts of North Dakota, Minnesota, and Manitoba.
-
E.
Ohio River
The Ohio River is a major waterway in the eastern United States that forms part of several state borders and serves as a key tributary of the Mississippi 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: Ohio River basin Target entity description: The Ohio River basin is a major watershed in the eastern United States that collects runoff from numerous tributaries across multiple states before ultimately feeding into the Mississippi River system.
-
A.
Mississippi River basin
The Mississippi River basin is the vast drainage area of the Mississippi River system, encompassing much of the central United States and parts of Canada and covering one of the largest river basins in the world.
-
B.
Yazoo River basin
The Yazoo River basin is a major drainage area in northwestern Mississippi that collects waters from the Yazoo River and its tributaries before they flow into the Mississippi River.
-
C.
Lower Mississippi River basin
The Lower Mississippi River basin is the southernmost portion of the Mississippi River drainage system, encompassing the river’s broad floodplain and delta region as it flows toward and empties into the Gulf of Mexico.
-
D.
Red River Basin
The Red River Basin is a major drainage area in the north-central United States and south-central Canada, known for the Red River of the North and its frequent flooding across parts of North Dakota, Minnesota, and Manitoba.
-
E.
Ohio River
The Ohio River is a major waterway in the eastern United States that forms part of several state borders and serves as a key tributary of the Mississippi River.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
river basin ⓘ watershed ⓘ |
| containsEcoregion |
Appalachian Plateau
ⓘ
Interior Lowlands ⓘ
surface form:
Central Lowland
Interior Low Plateau ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainageArea |
approximately 189000 square miles
ⓘ
approximately 490600 square kilometers ⓘ |
| drains |
parts of Alabama
ⓘ
parts of Georgia ⓘ parts of Illinois ⓘ parts of Indiana ⓘ parts of Kentucky ⓘ parts of Mississippi ⓘ parts of New York ⓘ parts of North Carolina ⓘ parts of Ohio ⓘ parts of Pennsylvania ⓘ parts of Tennessee ⓘ parts of Virginia ⓘ parts of West Virginia ⓘ |
| drainsInto | Mississippi River ⓘ |
| hasMouthAt | confluence of Ohio River and Mississippi River at Cairo, Illinois ⓘ |
| hasOutlet | Ohio River ⓘ |
| hasTributaryBasin |
Allegheny River
ⓘ
surface form:
Allegheny River basin
Big Sandy River ⓘ
surface form:
Big Sandy River basin
Cumberland River ⓘ
surface form:
Cumberland River basin
Green River basin ⓘ Hocking River ⓘ
surface form:
Hocking River basin
Kanawha River ⓘ
surface form:
Kanawha River basin
Licking River basin ⓘ Miami River ⓘ
surface form:
Miami River basin
Monongahela River ⓘ
surface form:
Monongahela River basin
Muskingum River ⓘ
surface form:
Muskingum River basin
Salt River basin ⓘ Scioto River ⓘ
surface form:
Scioto River basin
Tennessee River basin ⓘ Wabash Valley ⓘ
surface form:
Wabash River basin
|
| hydrologicUnitCodeSystem |
United States Geological Survey hydrologic unit codes
ⓘ
surface form:
USGS HUC system
|
| locatedIn |
Eastern United States
ⓘ
surface form:
eastern United States
|
| majorUse |
agricultural irrigation
ⓘ
hydroelectric power generation ⓘ industrial water supply ⓘ municipal water supply ⓘ navigation ⓘ recreation ⓘ |
| namedAfter | Ohio River ⓘ |
| partOf |
Gulf of Mexico watershed
ⓘ
surface form:
Gulf of Mexico drainage system
Mississippi River basin ⓘ |
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: Ohio River basin Description of subject: The Ohio River basin is a major watershed in the eastern United States that collects runoff from numerous tributaries across multiple states before ultimately feeding into the Mississippi River system.
Referenced by (63)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ohio River Valley
this entity surface form:
Ohio River watershed
subject surface form:
Buck Creek (Ohio)
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River drainage basin
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River Basin
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River Valley
this entity surface form:
Ohio River system
this entity surface form:
Ohio River Valley
this entity surface form:
Ohio River Valley
this entity surface form:
Ohio River Valley
this entity surface form:
Ohio River Valley
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River Valley
this entity surface form:
Ohio River Valley
this entity surface form:
Ohio River watershed
this entity surface form:
Ohio River watershed