Southern Ontario hydrological system
E1530148
UNEXPLORED
The Southern Ontario hydrological system is the interconnected network of rivers, creeks, lakes, wetlands, and groundwater that drains and sustains the landscapes and communities of southern Ontario, Canada.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Southern Ontario hydrological system canonical | 1 |
| Toronto region watersheds | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T22312145 — 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: Southern Ontario hydrological system Context triple: [Humber West Creek, partOf, Southern Ontario hydrological system]
-
A.
Credit Valley watershed
The Credit Valley watershed is the drainage basin in Southern Ontario that encompasses the Credit River and its tributaries, supporting diverse ecosystems and communities from headwaters to Lake Ontario.
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B.
Lake Simcoe watershed
The Lake Simcoe watershed is the drainage basin surrounding Lake Simcoe in Ontario, Canada, encompassing its tributary rivers, wetlands, and bays and serving as a key ecological and recreational region.
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C.
Niagara Peninsula watershed
The Niagara Peninsula watershed is a drainage basin in southern Ontario that collects water from rivers and streams, including the Welland River, before it ultimately flows toward the Niagara River and surrounding Great Lakes system.
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D.
Grand River watershed
The Grand River watershed is a drainage basin in northeastern Ohio that collects and channels water from surrounding communities, including Geneva, into the Grand River system.
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E.
Grand River watershed
The Grand River watershed is the drainage basin of Michigan’s longest river, encompassing the land area whose surface water ultimately flows into the Grand River and then into Lake Michigan.
- 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: Southern Ontario hydrological system Target entity description: The Southern Ontario hydrological system is the interconnected network of rivers, creeks, lakes, wetlands, and groundwater that drains and sustains the landscapes and communities of southern Ontario, Canada.
-
A.
Credit Valley watershed
The Credit Valley watershed is the drainage basin in Southern Ontario that encompasses the Credit River and its tributaries, supporting diverse ecosystems and communities from headwaters to Lake Ontario.
-
B.
Lake Simcoe watershed
The Lake Simcoe watershed is the drainage basin surrounding Lake Simcoe in Ontario, Canada, encompassing its tributary rivers, wetlands, and bays and serving as a key ecological and recreational region.
-
C.
Niagara Peninsula watershed
The Niagara Peninsula watershed is a drainage basin in southern Ontario that collects water from rivers and streams, including the Welland River, before it ultimately flows toward the Niagara River and surrounding Great Lakes system.
-
D.
Grand River watershed
The Grand River watershed is a drainage basin in northeastern Ohio that collects and channels water from surrounding communities, including Geneva, into the Grand River system.
-
E.
Grand River watershed
The Grand River watershed is the drainage basin of Michigan’s longest river, encompassing the land area whose surface water ultimately flows into the Grand River and then into Lake Michigan.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Southern Ontario hydrological system