Mad River (Ohio)
E369533
Mad River is a tributary of the Great Miami River in western Ohio, known for its clear, spring-fed waters and popularity for canoeing, kayaking, and fishing.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mad River (Ohio) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3482431 — 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: Mad River (Ohio) Context triple: [Buck Creek (Ohio), mouthOfWatercourse, Mad River (Ohio)]
-
A.
Black River (Ohio)
Black River (Ohio) is a river in northern Ohio that flows into Lake Erie and has historically supported industry, shipping, and recreation in the Lorain area.
-
B.
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.
-
C.
Glatt River
The Glatt River is a watercourse in northern Switzerland that drains Lake Greifen and flows through the Zurich region before joining the Rhine.
-
D.
Licking River
The Licking River is a significant waterway in Kentucky that drains a large portion of the state’s northeastern region before joining the Ohio River near Cincinnati.
-
E.
Clarion River
The Clarion River is a scenic waterway in western Pennsylvania known for its forested surroundings, outdoor recreation opportunities, and designation as part of the National Wild and Scenic Rivers System.
- 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: Mad River (Ohio) Target entity description: Mad River is a tributary of the Great Miami River in western Ohio, known for its clear, spring-fed waters and popularity for canoeing, kayaking, and fishing.
-
A.
Black River (Ohio)
Black River (Ohio) is a river in northern Ohio that flows into Lake Erie and has historically supported industry, shipping, and recreation in the Lorain area.
-
B.
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.
-
C.
Glatt River
The Glatt River is a watercourse in northern Switzerland that drains Lake Greifen and flows through the Zurich region before joining the Rhine.
-
D.
Licking River
The Licking River is a significant waterway in Kentucky that drains a large portion of the state’s northeastern region before joining the Ohio River near Cincinnati.
-
E.
Clarion River
The Clarion River is a scenic waterway in western Pennsylvania known for its forested surroundings, outdoor recreation opportunities, and designation as part of the National Wild and Scenic Rivers System.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
tributary ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainageBasin |
Great Miami River
ⓘ
surface form:
Great Miami River basin
|
| fisheryType |
smallmouth bass fishery
ⓘ
trout fishery ⓘ |
| flowsThrough |
Champaign County, Ohio
NERFINISHED
ⓘ
Clark County, Ohio NERFINISHED ⓘ Greene County, Ohio NERFINISHED ⓘ Logan County, Ohio NERFINISHED ⓘ Montgomery County, Ohio NERFINISHED ⓘ |
| hasCharacteristic |
gravel and limestone substrate
ⓘ
relatively fast current in some reaches ⓘ |
| hasNameEtymology | possibly named for its swift current ⓘ |
| hasWildlife |
brown trout
ⓘ
rainbow trout ⓘ smallmouth bass ⓘ various panfish ⓘ |
| locatedIn | Ohio ⓘ |
| locatedInRegion | western Ohio ⓘ |
| managedBy | Ohio Department of Natural Resources ⓘ |
| mouth | Great Miami River ⓘ |
| mouthLocatedIn |
Dayton
ⓘ
surface form:
Dayton, Ohio
|
| near |
Dayton
ⓘ
surface form:
Dayton, Ohio
Fairborn, Ohio ⓘ Springfield, Ohio NERFINISHED ⓘ |
| notableFor |
cold water temperature
ⓘ
consistent flow from springs ⓘ good water clarity ⓘ |
| partOf |
Mississippi River basin
ⓘ
Ohio River basin ⓘ
surface form:
Ohio River watershed
|
| popularWith |
anglers
ⓘ
recreational paddlers ⓘ |
| recreationInfrastructure |
canoe and kayak launches
ⓘ
public access points ⓘ |
| recreationType |
angling
ⓘ
paddlesports ⓘ |
| sourceRegion |
Bellefontaine, Ohio
ⓘ
surface form:
Bellefontaine Outlier
Mad River Township, Logan County, Ohio ⓘ |
| sourceType | springs ⓘ |
| tributaryOf | Great Miami River ⓘ |
| usedFor |
canoeing
ⓘ
fishing ⓘ kayaking ⓘ |
| waterClarity | clear ⓘ |
| waterType | spring-fed ⓘ |
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: Mad River (Ohio) Description of subject: Mad River is a tributary of the Great Miami River in western Ohio, known for its clear, spring-fed waters and popularity for canoeing, kayaking, and fishing.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Buck Creek (Ohio)