Mulchatna River
E711971
The Mulchatna River is a major salmon-bearing tributary in southwestern Alaska, flowing through remote wilderness before joining the Nushagak River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mulchatna River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7790894 — 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: Mulchatna River Context triple: [Nushagak River basin, containsRiver, Mulchatna River]
-
A.
Alsek River
The Alsek River is a major glacial-fed river in northwestern North America that flows through the Yukon and Alaska to the Pacific, renowned for its wild, remote character and world-class wilderness rafting.
-
B.
Matanuska River
The Matanuska River is a glacially fed river in southcentral Alaska known for its scenic valley, braided channels, and proximity to the Matanuska Glacier.
-
C.
Susitna River
The Susitna River is a major south-central Alaskan river that flows from the Alaska Range to Cook Inlet, supporting rich wildlife habitats and regional recreation.
-
D.
Kobuk River
The Kobuk River is a major river in northwestern Alaska that flows westward through remote wilderness to Kotzebue Sound above the Arctic Circle.
-
E.
Yentna River
The Yentna River is a major glacial-fed river in south-central Alaska that flows through remote wilderness before joining the Susitna River.
- 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: Mulchatna River Target entity description: The Mulchatna River is a major salmon-bearing tributary in southwestern Alaska, flowing through remote wilderness before joining the Nushagak River.
-
A.
Alsek River
The Alsek River is a major glacial-fed river in northwestern North America that flows through the Yukon and Alaska to the Pacific, renowned for its wild, remote character and world-class wilderness rafting.
-
B.
Matanuska River
The Matanuska River is a glacially fed river in southcentral Alaska known for its scenic valley, braided channels, and proximity to the Matanuska Glacier.
-
C.
Susitna River
The Susitna River is a major south-central Alaskan river that flows from the Alaska Range to Cook Inlet, supporting rich wildlife habitats and regional recreation.
-
D.
Kobuk River
The Kobuk River is a major river in northwestern Alaska that flows westward through remote wilderness to Kotzebue Sound above the Arctic Circle.
-
E.
Yentna River
The Yentna River is a major glacial-fed river in south-central Alaska that flows through remote wilderness before joining the Susitna River.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| drainageTo | Bristol Bay NERFINISHED ⓘ |
| flowsThrough |
Bristol Bay watershed
ⓘ
remote wilderness ⓘ |
| hasCharacteristic |
remote
ⓘ
sparsely populated ⓘ wilderness river ⓘ |
| hasConservationConcern |
salmon habitat protection
ⓘ
subsistence resource management ⓘ |
| hasEcologicalRole | major salmon-bearing tributary of Nushagak River ⓘ |
| hasWildlife |
Arctic grayling
NERFINISHED
ⓘ
Chinook salmon NERFINISHED ⓘ Pacific salmon NERFINISHED ⓘ black bear ⓘ brown bear ⓘ caribou ⓘ chum salmon ⓘ coho salmon ⓘ moose ⓘ rainbow trout ⓘ sockeye salmon ⓘ |
| locatedIn |
Alaska
ⓘ
southwestern Alaska NERFINISHED ⓘ |
| locatedInTimeZone | Alaska Time Zone ⓘ |
| mouthCountry | United States NERFINISHED ⓘ |
| mouthLocation | Nushagak River NERFINISHED ⓘ |
| mouthState | Alaska NERFINISHED ⓘ |
| partOf |
Bristol Bay salmon ecosystem
NERFINISHED
ⓘ
Nushagak River drainage NERFINISHED ⓘ |
| region | Bristol Bay region NERFINISHED ⓘ |
| supports |
salmon runs
ⓘ
sport fishing ⓘ subsistence fishing ⓘ |
| tributaryOf | Nushagak River NERFINISHED ⓘ |
| usedFor |
float trips
ⓘ
hunting access ⓘ recreational fishing ⓘ |
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: Mulchatna River Description of subject: The Mulchatna River is a major salmon-bearing tributary in southwestern Alaska, flowing through remote wilderness before joining the Nushagak River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.