Eramosa River
E273074
The Eramosa River is a tributary of the Grand River in southern Ontario, Canada, known for flowing through the city of Guelph and its surrounding natural and recreational areas.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Eramosa River canonical | 3 |
| Eramosa River valley | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1585131 — 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: Eramosa River Context triple: [Guelph, hasRiver, Eramosa River]
-
A.
Mississagi River
The Mississagi River is a major river in northern Ontario, Canada, that flows through rugged forested terrain before emptying into Lake Huron.
-
B.
Moose River
Moose River is a scenic waterway in the Adirondack region of New York State, known for its canoeing, kayaking, and wilderness surroundings near the hamlet of Old Forge.
-
C.
Moose River
Moose River is a scenic waterway in western Maine known for its remote forests, wildlife, and popular canoeing and fishing opportunities.
-
D.
Scugog River
Scugog River is a waterway in the Kawartha Lakes region of Ontario, Canada, that connects Lake Scugog to the Kawartha lake system and forms part of the Trent–Severn Waterway.
-
E.
Nelson River
The Nelson River is a major river in Manitoba, Canada, that drains Lake Winnipeg and flows northeast through boreal forest and hydroelectric developments before emptying into Hudson 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: Eramosa River Target entity description: The Eramosa River is a tributary of the Grand River in southern Ontario, Canada, known for flowing through the city of Guelph and its surrounding natural and recreational areas.
-
A.
Mississagi River
The Mississagi River is a major river in northern Ontario, Canada, that flows through rugged forested terrain before emptying into Lake Huron.
-
B.
Moose River
Moose River is a scenic waterway in the Adirondack region of New York State, known for its canoeing, kayaking, and wilderness surroundings near the hamlet of Old Forge.
-
C.
Moose River
Moose River is a scenic waterway in western Maine known for its remote forests, wildlife, and popular canoeing and fishing opportunities.
-
D.
Scugog River
Scugog River is a waterway in the Kawartha Lakes region of Ontario, Canada, that connects Lake Scugog to the Kawartha lake system and forms part of the Trent–Severn Waterway.
-
E.
Nelson River
The Nelson River is a major river in Manitoba, Canada, that drains Lake Winnipeg and flows northeast through boreal forest and hydroelectric developments before emptying into Hudson Bay.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Canada ⓘ |
| cityServed | Guelph ⓘ |
| country | Canada ⓘ |
| crosses |
Guelph Lake area
ⓘ
surface form:
Guelph Lake conservation area vicinity
|
| drainageBasin | Grand River drainage basin ⓘ |
| ecosystemType | riparian ecosystem ⓘ |
| environmentalManagementBy | Grand River Conservation Authority ⓘ |
| flowsThrough |
Guelph
ⓘ
surface form:
City of Guelph
Guelph/Eramosa Township ⓘ
surface form:
Guelph-Eramosa
Rockwood ⓘ Wellington County, Ontario ⓘ
surface form:
Wellington County
|
| geologicalContext | Eramosa Formation (Silurian limestone and dolostone) ⓘ |
| hasBridges |
railway bridges in Guelph area
ⓘ
road bridges in Guelph ⓘ |
| hasNameOrigin | named after the Eramosa Formation and local geology ⓘ |
| hasNearbyFeature |
Eramosa Karst landscapes
ⓘ
Rockwood Conservation Area ⓘ |
| hasNearbySettlement |
Guelph
ⓘ
Guelph/Eramosa Township ⓘ
surface form:
Guelph-Eramosa Township
Rockwood, Ontario ⓘ |
| hasRecreationInfrastructure |
parks along the river in Guelph
ⓘ
riverside trails in Guelph ⓘ |
| hasValley |
Eramosa River
self-linksurface differs
ⓘ
surface form:
Eramosa River valley
|
| hasWildlife | fish species typical of Southern Ontario rivers ⓘ |
| knownFor |
canoeing and kayaking
ⓘ
fishing ⓘ limestone cliffs and outcrops ⓘ natural areas ⓘ recreational areas ⓘ scenic valley ⓘ trails along the river ⓘ |
| locatedIn |
Ontario
ⓘ
Southern Ontario ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| mouth | Grand River ⓘ |
| mouthLocation | near Cambridge, Ontario ⓘ |
| partOf |
Great Lakes–St. Lawrence system
ⓘ
surface form:
Great Lakes–St. Lawrence River drainage basin
|
| provinceOrState | Ontario ⓘ |
| recreationActivity |
birdwatching along the river
ⓘ
picnicking in riverside parks ⓘ |
| region | Grand River watershed ⓘ |
| tributaryOf | Grand River ⓘ |
| usedFor |
angling
ⓘ
hiking along riverbanks ⓘ recreation ⓘ |
| 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: Eramosa River Description of subject: The Eramosa River is a tributary of the Grand River in southern Ontario, Canada, known for flowing through the city of Guelph and its surrounding natural and recreational areas.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Eramosa River valley
this entity surface form:
Eramosa River valley