Marmora River
E645906
The Marmora River is a waterway in Ontario, Canada, that flows through the Marmora area before joining the Trent River within the Trent-Severn watershed.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Marmora River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6248575 — 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: Marmora River Context triple: [Trent River, hasTributary, Marmora River]
-
A.
Marta River
The Marta River is a watercourse in central Italy that drains Lake Bolsena and flows southwest toward the Tyrrhenian Sea.
-
B.
Sabor River
The Sabor River is a significant river in northeastern Portugal that flows through the Trás-os-Montes region before joining the Douro.
-
C.
Vargas River
The Vargas River is a waterway in southern Chilean Patagonia that forms part of the Baker River basin, contributing to one of the country’s largest and most powerful river systems.
-
D.
Bellós River
The Bellós River is a mountain river in the Spanish Pyrenees, known for carving deep gorges and canyons within and around Ordesa y Monte Perdido National Park.
-
E.
San Lorenzo River
The San Lorenzo River is a coastal river in central California that flows through the city of Santa Cruz into the Monterey 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: Marmora River Target entity description: The Marmora River is a waterway in Ontario, Canada, that flows through the Marmora area before joining the Trent River within the Trent-Severn watershed.
-
A.
Marta River
The Marta River is a watercourse in central Italy that drains Lake Bolsena and flows southwest toward the Tyrrhenian Sea.
-
B.
Sabor River
The Sabor River is a significant river in northeastern Portugal that flows through the Trás-os-Montes region before joining the Douro.
-
C.
Vargas River
The Vargas River is a waterway in southern Chilean Patagonia that forms part of the Baker River basin, contributing to one of the country’s largest and most powerful river systems.
-
D.
Bellós River
The Bellós River is a mountain river in the Spanish Pyrenees, known for carving deep gorges and canyons within and around Ordesa y Monte Perdido National Park.
-
E.
San Lorenzo River
The San Lorenzo River is a coastal river in central California that flows through the city of Santa Cruz into the Monterey Bay.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Canada ⓘ |
| continent | North America ⓘ |
| country | Canada ⓘ |
| drainageBasin | Lake Ontario drainage basin ⓘ |
| flowsInto | Trent River ⓘ |
| hasEcosystemType | freshwater river ⓘ |
| hasUse |
canoeing
ⓘ
recreation ⓘ sport fishing ⓘ |
| hasWatershed | Trent–Severn watershed ⓘ |
| isPartOfHydrologicalSystem |
Great Lakes–St. Lawrence River system
ⓘ
linked to:
Great Lakes–St. Lawrence system
|
| locatedIn |
Canada
ⓘ
Ontario ⓘ |
| locatedInAdministrativeTerritory | Hastings County ⓘ |
| locatedInOrNear |
Marmora
ⓘ
Marmora and Lake ⓘ |
| mouthOf | Trent River ⓘ |
| namedAfter | Marmora ⓘ |
| partOf |
Trent River basin
ⓘ
linked to:
Trent River
Trent–Severn waterway watershed ⓘ
linked to:
Trent–Severn Waterway
|
| region | Eastern Ontario ⓘ |
| tributaryOf | Trent River ⓘ |
| waterbodyType | river in Ontario ⓘ |
| watercourseThrough | Marmora area ⓘ |
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: Marmora River Description of subject: The Marmora River is a waterway in Ontario, Canada, that flows through the Marmora area before joining the Trent River within the Trent-Severn watershed.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.