St. Marys River
E315599
The St. Marys River is a tributary in the Midwestern United States that flows through northeastern Indiana and joins with other rivers at Fort Wayne to form the Maumee River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| St. Marys River canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1823722 — 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 Context triple: [Fort Wayne, Indiana, locatedAtConfluenceOf, St. Marys River]
-
A.
St. Marys River
The St. Marys River is a vital waterway forming part of the U.S.–Canada border, connecting Lake Superior to Lake Huron and hosting major shipping locks at Sault Ste. Marie.
-
B.
St. Clair River
The St. Clair River is a major waterway forming part of the border between the United States and Canada, flowing south from Lake Huron toward Lake St. Clair as a key segment of the Great Lakes–St. Lawrence Seaway.
-
C.
Grand River
Grand River is a major river in southwestern Ontario, Canada, flowing through several cities and communities before emptying into Lake Erie.
-
D.
Grand River
The Grand River, now known as the Churchill River, is a major river in Newfoundland and Labrador, Canada, renowned for its powerful flow and hydroelectric potential.
-
E.
Nottawasaga River
The Nottawasaga River is a waterway in central Ontario, Canada, that flows through communities such as Alliston before emptying into Nottawasaga Bay on Georgian Bay.
- 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 Target entity description: The St. Marys River is a tributary in the Midwestern United States that flows through northeastern Indiana and joins with other rivers at Fort Wayne to form the Maumee River.
-
A.
St. Marys River
The St. Marys River is a vital waterway forming part of the U.S.–Canada border, connecting Lake Superior to Lake Huron and hosting major shipping locks at Sault Ste. Marie.
-
B.
St. Clair River
The St. Clair River is a major waterway forming part of the border between the United States and Canada, flowing south from Lake Huron toward Lake St. Clair as a key segment of the Great Lakes–St. Lawrence Seaway.
-
C.
Grand River
The Grand River, now known as the Churchill River, is a major river in Newfoundland and Labrador, Canada, renowned for its powerful flow and hydroelectric potential.
-
D.
Grand River
Grand River is a major river in southwestern Ontario, Canada, flowing through several cities and communities before emptying into Lake Erie.
-
E.
Nottawasaga River
The Nottawasaga River is a waterway in central Ontario, Canada, that flows through communities such as Alliston before emptying into Nottawasaga Bay on Georgian Bay.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
tributary ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| cityOnRiver | Fort Wayne, Indiana ⓘ |
| confluenceWith |
St. Joseph River (Maumee)
ⓘ
linked to:
St. Joseph River
|
| connectedTo |
St. Joseph River (Maumee) at Fort Wayne
ⓘ
linked to:
St. Joseph River
|
| continent | North America ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| drainsInto | Lake Erie via Maumee River ⓘ |
| flowsGenerally | north-northeast ⓘ |
| flowsInto | Maumee River ⓘ |
| flowsThrough |
Fort Wayne, Indiana
ⓘ
Indiana ⓘ Ohio ⓘ northeastern Indiana ⓘ |
| forms | Maumee River ⓘ |
| hasFloodControlInfrastructure |
floodwalls in Fort Wayne
ⓘ
levees in Fort Wayne ⓘ |
| hasFloodRisk | Fort Wayne, Indiana ⓘ |
| hasUse |
local drainage
ⓘ
recreation ⓘ |
| locatedIn |
Adams County, Indiana
NERFINISHED
ⓘ
Allen County, Indiana NERFINISHED ⓘ Auglaize County, Ohio NERFINISHED ⓘ Mercer County, Ohio NERFINISHED ⓘ Midwestern United States ⓘ Van Wert County, Ohio NERFINISHED ⓘ |
| mouthLocatedIn | Fort Wayne, Indiana ⓘ |
| partOf |
Maumee River Area of Concern (AOC) for Great Lakes water quality
ⓘ
linked to:
Area of Concern in the Great Lakes
Maumee River basin ⓘ
linked to:
Maumee River
Mississippi River watershed via Maumee River and Lake Erie ⓘ |
| passesThrough |
Decatur, Indiana
ⓘ
St. Marys, Ohio NERFINISHED ⓘ |
| region | Great Lakes region ⓘ |
| riverSystem |
Maumee River watershed
ⓘ
linked to:
Maumee River
|
| sourceLocation | western Ohio ⓘ |
| state |
Indiana
ⓘ
Ohio ⓘ |
| tributaryOf | Maumee 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 Description of subject: The St. Marys River is a tributary in the Midwestern United States that flows through northeastern Indiana and joins with other rivers at Fort Wayne to form the Maumee River.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.