Marias River
E527006
The Marias River is a tributary in north-central Montana that flows eastward to join the Missouri River, draining a portion of the northern Great Plains.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Marias River canonical | 2 |
| Marias River drainage | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4528850 — 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: Marias River Context triple: [Missouri River Basin, containsRiver, Marias River]
-
A.
Renaico River
The Renaico River is a Chilean watercourse in south-central Chile that serves as one of the tributaries feeding into the larger Biobío River basin.
-
B.
Loncomilla River
The Loncomilla River is a significant watercourse in central Chile that serves as a major tributary of the Maule River, supporting agriculture and settlements in the surrounding region.
-
C.
Bojacá River
The Bojacá River is a watercourse in the Cundinamarca department of central Colombia that flows through municipalities on the Bogotá savanna.
-
D.
Cautín River
The Cautín River is a significant waterway in Chile’s Araucanía Region that flows through the city of Temuco and its surrounding agricultural and forested landscapes.
-
E.
Saltoro River
The Saltoro River is a high-altitude river in the eastern Karakoram region that drains the Saltoro Range and flows into the Shyok River in the disputed Siachen–Baltistan area.
- 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: Marias River Target entity description: The Marias River is a tributary in north-central Montana that flows eastward to join the Missouri River, draining a portion of the northern Great Plains.
-
A.
Renaico River
The Renaico River is a Chilean watercourse in south-central Chile that serves as one of the tributaries feeding into the larger Biobío River basin.
-
B.
Loncomilla River
The Loncomilla River is a significant watercourse in central Chile that serves as a major tributary of the Maule River, supporting agriculture and settlements in the surrounding region.
-
C.
Bojacá River
The Bojacá River is a watercourse in the Cundinamarca department of central Colombia that flows through municipalities on the Bogotá savanna.
-
D.
Cautín River
The Cautín River is a significant waterway in Chile’s Araucanía Region that flows through the city of Temuco and its surrounding agricultural and forested landscapes.
-
E.
Saltoro River
The Saltoro River is a high-altitude river in the eastern Karakoram region that drains the Saltoro Range and flows into the Shyok River in the disputed Siachen–Baltistan area.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drains | northern Great Plains ⓘ |
| exploredBy | Lewis and Clark Expedition NERFINISHED ⓘ |
| flowsDirection | eastward ⓘ |
| flowsInto | Missouri River near Loma, Montana NERFINISHED ⓘ |
| flowsThrough |
Chouteau County, Montana
NERFINISHED
ⓘ
Liberty County, Montana NERFINISHED ⓘ Pondera County, Montana NERFINISHED ⓘ Toole County, Montana NERFINISHED ⓘ |
| formsReservoir | Lake Elwell NERFINISHED ⓘ |
| hasBridge | Interstate 15 bridge over Marias River NERFINISHED ⓘ |
| hasDam | Tiber Dam NERFINISHED ⓘ |
| hasRecreationArea | Marias River State Park and Wildlife Management Area NERFINISHED ⓘ |
| hasTributary |
Cut Bank Creek
NERFINISHED
ⓘ
Teton River (Montana) NERFINISHED ⓘ Two Medicine River NERFINISHED ⓘ |
| hasWatershed | Marias River watershed ⓘ |
| locatedIn |
Great Plains
ⓘ
north-central Montana ⓘ northwestern Great Plains ⓘ |
| mouthCountry | United States NERFINISHED ⓘ |
| mouthLocation | Missouri River NERFINISHED ⓘ |
| mouthState | Montana NERFINISHED ⓘ |
| namedBy | Meriwether Lewis NERFINISHED ⓘ |
| partOf |
Louisiana Purchase territory (historical)
NERFINISHED
ⓘ
Missouri River watershed ⓘ |
| region | northern Great Plains ⓘ |
| riverSystem | Missouri River basin NERFINISHED ⓘ |
| state | Montana NERFINISHED ⓘ |
| tributaryOf | Missouri River NERFINISHED ⓘ |
| usedFor |
fishing
ⓘ
irrigation ⓘ recreation ⓘ |
| USGSFeatureClass | Stream ⓘ |
| watercourseType | perennial 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: Marias River Description of subject: The Marias River is a tributary in north-central Montana that flows eastward to join the Missouri River, draining a portion of the northern Great Plains.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Marias River drainage