Mississippi River basin
E50492
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.
All labels observed (14)
How this entity was disambiguated
This entity first appeared as the object of triple T396839 — 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: Mississippi River basin Context triple: [Great Plains, borders, Mississippi River basin]
-
A.
Mississippi River valley
The Mississippi River valley is a vast, fertile lowland region in the central United States shaped by the Mississippi River, historically crucial for agriculture, trade, and settlement.
-
B.
Upper Mississippi Valley
The Upper Mississippi Valley is a region along the upper course of the Mississippi River, encompassing parts of several Midwestern U.S. states and historically significant for trade, settlement, and military activity.
-
C.
Mississippi River
The Mississippi River is one of the longest and most significant rivers in the United States, serving as a major waterway for transportation, commerce, and drainage across much of the central continent.
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D.
Great Lakes–St. Lawrence system
The Great Lakes–St. Lawrence system is a vast interconnected chain of freshwater lakes and the St. Lawrence River that forms one of the world’s largest inland waterways, linking the interior of North America to the Atlantic Ocean.
-
E.
Tennessee Valley
The Tennessee Valley is a region in the southeastern United States centered around the Tennessee River, known for its historically rural economy, flood-prone landscape, and large-scale development through New Deal-era infrastructure and power projects.
- 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: Mississippi River basin Target entity description: 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.
-
A.
Mississippi River valley
The Mississippi River valley is a vast, fertile lowland region in the central United States shaped by the Mississippi River, historically crucial for agriculture, trade, and settlement.
-
B.
Upper Mississippi Valley
The Upper Mississippi Valley is a region along the upper course of the Mississippi River, encompassing parts of several Midwestern U.S. states and historically significant for trade, settlement, and military activity.
-
C.
Mississippi River
The Mississippi River is one of the longest and most significant rivers in the United States, serving as a major waterway for transportation, commerce, and drainage across much of the central continent.
-
D.
Great Lakes–St. Lawrence system
The Great Lakes–St. Lawrence system is a vast interconnected chain of freshwater lakes and the St. Lawrence River that forms one of the world’s largest inland waterways, linking the interior of North America to the Atlantic Ocean.
-
E.
Tennessee Valley
The Tennessee Valley is a region in the southeastern United States centered around the Tennessee River, known for its historically rural economy, flood-prone landscape, and large-scale development through New Deal-era infrastructure and power projects.
- F. None of above. chosen
Statements (79)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
river basin ⓘ watershed ⓘ |
| alsoKnownAs |
Mississippi River basin
ⓘ
surface form:
Mississippi River watershed
Mississippi River basin ⓘ
surface form:
Mississippi drainage basin
|
| area |
about 1.2 million square miles
ⓘ
about 3.2 million square kilometers ⓘ |
| climate | varies from humid subtropical to semi-arid and continental ⓘ |
| contains |
extensive agricultural lands
ⓘ
floodplains ⓘ major urban areas ⓘ wetlands ⓘ |
| country |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
|
| crosses | multiple physiographic regions of North America ⓘ |
| drainagePercentageOfUS | about 41 percent ⓘ |
| drains | Mississippi River ⓘ |
| drainsInto | Gulf of Mexico ⓘ |
| drainsPortionOf | 31 U.S. states ⓘ |
| environmentalIssue |
flood risk
ⓘ
habitat loss ⓘ nutrient pollution ⓘ sediment loading ⓘ |
| governedBy |
Mississippi River Commission
ⓘ
U.S. Army Corps of Engineers ⓘ |
| hasPart |
Arkansas River basin
ⓘ
Atchafalaya Basin ⓘ
surface form:
Atchafalaya River basin
Des Moines River ⓘ
surface form:
Des Moines River basin
Illinois River ⓘ
surface form:
Illinois River basin
Lower Mississippi River basin ⓘ Minnesota River ⓘ
surface form:
Minnesota River basin
Missouri River Basin ⓘ
surface form:
Missouri River basin
Ohio River ⓘ
surface form:
Ohio River basin
Platte River ⓘ
surface form:
Platte River basin
Red River of the South ⓘ
surface form:
Red River of the South basin
Tennessee River ⓘ
surface form:
Tennessee River basin
Upper Mississippi Valley ⓘ
surface form:
Upper Mississippi River basin
Yazoo River basin ⓘ |
| hydrologicCodeSystem | United States Geological Survey hydrologic unit codes ⓘ |
| includesPartOf |
Alabama
ⓘ
Alberta ⓘ Arkansas ⓘ Colorado ⓘ Alabama ⓘ
surface form:
Georgia
Illinois ⓘ Indiana ⓘ Iowa ⓘ Kansas ⓘ Kentucky ⓘ Louisiana ⓘ Manitoba ⓘ Minnesota ⓘ Mississippi ⓘ Missouri River ⓘ
surface form:
Missouri
Montana ⓘ Nebraska ⓘ New York ⓘ North Carolina ⓘ North Dakota ⓘ Ohio ⓘ Oklahoma ⓘ Pennsylvania ⓘ Saskatchewan ⓘ South Dakota ⓘ Tennessee ⓘ West Virginia ⓘ Wisconsin ⓘ Wyoming ⓘ |
| influences | hypoxic zone in the northern Gulf of Mexico ⓘ |
| locatedIn |
Canada
ⓘ
North America ⓘ United States of America ⓘ
surface form:
United States
|
| majorCityInBasin |
Memphis
ⓘ
Minneapolis–Saint Paul ⓘ New Orleans ⓘ St. Louis, Missouri, United States ⓘ
surface form:
St. Louis
|
| name | Mississippi River basin self-link ⓘ |
| partOf |
Mississippi River basin
self-linksurface differs
ⓘ
surface form:
Mississippi River system
|
| rank | one of the largest river basins in the world ⓘ |
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: Mississippi River basin Description of subject: 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.
Referenced by (227)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mississippi River watershed
this entity surface form:
Upper Mississippi River basin
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River Basin
important transportation corridor during westward expansion of the United States
→
partOf
→
Mississippi River basin
ⓘ
subject surface form:
Missouri River
this entity surface form:
Mississippi River system
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River system
subject surface form:
Indian Creek (Illinois)
this entity surface form:
Mississippi River watershed
subject surface form:
Des Plaines River
this entity surface form:
Mississippi River watershed
subject surface form:
Des Plaines River
this entity surface form:
Mississippi River Basin
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River Basin
this entity surface form:
Mississippi River Basin
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River system
this entity surface form:
Mississippi River watershed
this entity surface form:
Mississippi River basin; Kingdom of France