St. Marys River (Maumee River tributary)
E237086
The St. Marys River is a tributary of the Maumee River in the Midwestern United States, flowing through northeastern Indiana and northwestern Ohio and playing a key role in the region’s drainage and watershed system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| St. Marys River (Maumee River tributary) canonical | 2 |
| St. Marys River (Saint Marys River between Lake Superior and Lake Huron) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2116566 — 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: St. Marys River (Maumee River tributary) Context triple: [Allen County, Indiana, hasRiver, St. Marys River (Maumee River tributary)]
-
A.
Huron River (Ohio)
The Huron River in Ohio is a tributary of Lake Erie that flows through north-central Ohio, including the vicinity of Milan, and is known for its scenic, recreational, and ecological significance.
-
B.
Huron River (Michigan)
The Huron River in Michigan is a scenic waterway in the Upper Peninsula known for its rugged, forested surroundings, waterfalls, and recreational opportunities like fishing and paddling.
-
C.
Maple River (Michigan)
Maple River (Michigan) is a tributary waterway in the Lower Peninsula that contributes to the Grand River watershed.
-
D.
Black River (Macatawa River)
Black River, also known as the Macatawa River, is a waterway in western Michigan that flows through the Holland area before emptying into Lake Macatawa and ultimately Lake Michigan.
-
E.
Thornapple River (Michigan)
The Thornapple River is a major mid-Michigan waterway known for its scenic, winding course through rural and suburban landscapes and its popularity for fishing, paddling, and recreation.
- 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: St. Marys River (Maumee River tributary) Target entity description: The St. Marys River is a tributary of the Maumee River in the Midwestern United States, flowing through northeastern Indiana and northwestern Ohio and playing a key role in the region’s drainage and watershed system.
-
A.
Huron River (Ohio)
The Huron River in Ohio is a tributary of Lake Erie that flows through north-central Ohio, including the vicinity of Milan, and is known for its scenic, recreational, and ecological significance.
-
B.
Huron River (Michigan)
The Huron River in Michigan is a scenic waterway in the Upper Peninsula known for its rugged, forested surroundings, waterfalls, and recreational opportunities like fishing and paddling.
-
C.
Maple River (Michigan)
Maple River (Michigan) is a tributary waterway in the Lower Peninsula that contributes to the Grand River watershed.
-
D.
Black River (Macatawa River)
Black River, also known as the Macatawa River, is a waterway in western Michigan that flows through the Holland area before emptying into Lake Macatawa and ultimately Lake Michigan.
-
E.
Thornapple River (Michigan)
The Thornapple River is a major mid-Michigan waterway known for its scenic, winding course through rural and suburban landscapes and its popularity for fishing, paddling, and recreation.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
tributary ⓘ |
| contributesTo | Maumee River discharge to Lake Erie ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| distinguishedFrom |
St. Marys River (Maumee River tributary)
self-linksurface differs
ⓘ
surface form:
St. Marys River (Saint Marys River between Lake Superior and Lake Huron)
|
| drainageBasin |
Lake Erie watershed
ⓘ
surface form:
Lake Erie basin
|
| environmentalRole |
runoff conveyance
ⓘ
surface water drainage ⓘ |
| flowsInto | Maumee River ⓘ |
| flowsThrough |
northeastern Indiana
ⓘ
northwestern Ohio ⓘ |
| hasName | St. Marys River ⓘ |
| hydrologicalFunction |
regional drainage
ⓘ
watershed system component ⓘ |
| locatedIn |
Indiana
ⓘ
Midwestern United States ⓘ Ohio ⓘ northeastern United States interior drainage region ⓘ |
| mouthLocation |
Maumee River at Fort Wayne, Indiana
ⓘ
Ohio ⓘ |
| mouthOf | Maumee River ⓘ |
| partOf |
Great Lakes–St. Lawrence system
ⓘ
surface form:
Great Lakes–St. Lawrence River drainage basin
Maumee River ⓘ
surface form:
Maumee River watershed
Ohio River–Mississippi River vs. Great Lakes drainage divide region (nearby) ⓘ |
| region |
Midwestern United States
ⓘ
surface form:
American Midwest
|
| sourceLocation | Indiana ⓘ |
| tributaryOf | Maumee River ⓘ |
| watercourseType | freshwater river ⓘ |
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: St. Marys River (Maumee River tributary) Description of subject: The St. Marys River is a tributary of the Maumee River in the Midwestern United States, flowing through northeastern Indiana and northwestern Ohio and playing a key role in the region’s drainage and watershed system.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
St. Marys River (Maumee River tributary)
→
distinguishedFrom
→
St. Marys River (Maumee River tributary)
self-linksurface differs
ⓘ
this entity surface form:
St. Marys River (Saint Marys River between Lake Superior and Lake Huron)