Green–Duwamish River watershed
E714984
The Green–Duwamish River watershed is a major drainage basin in King County, Washington, encompassing the Green and Duwamish rivers and their tributaries as they flow from the Cascade Range through suburban and industrial areas into Puget Sound.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Duwamish River watershed | 1 |
| Green–Duwamish River watershed canonical | 1 |
| Green–Duwamish watershed | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8033604 — 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: Green–Duwamish River watershed Context triple: [Green River (Washington), basinPartOf, Green–Duwamish River watershed]
-
A.
Duwamish River
The Duwamish River is an industrialized waterway in Washington State that flows through the Seattle area and into Elliott Bay, historically serving as a vital route for commerce and the homeland of the Duwamish people.
-
B.
Snohomish River
The Snohomish River is a major river in western Washington State that flows through Snohomish County into Puget Sound, helping drain the Cascade Range and supporting regional ecosystems and communities.
-
C.
Wahkiakum River
The Wahkiakum River is a small coastal river in southwest Washington State that flows through forested terrain before emptying into the Columbia River.
-
D.
Sammamish River
The Sammamish River is a short river in King County, Washington, that drains Lake Sammamish and flows northwest through suburban communities before emptying into Lake Washington.
-
E.
Duwamish
The Duwamish are a Coast Salish Native American people indigenous to the Seattle, Washington area, with deep historical, cultural, and spiritual ties to the region’s waterways and lands.
- 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: Green–Duwamish River watershed Target entity description: The Green–Duwamish River watershed is a major drainage basin in King County, Washington, encompassing the Green and Duwamish rivers and their tributaries as they flow from the Cascade Range through suburban and industrial areas into Puget Sound.
-
A.
Duwamish River
The Duwamish River is an industrialized waterway in Washington State that flows through the Seattle area and into Elliott Bay, historically serving as a vital route for commerce and the homeland of the Duwamish people.
-
B.
Snohomish River
The Snohomish River is a major river in western Washington State that flows through Snohomish County into Puget Sound, helping drain the Cascade Range and supporting regional ecosystems and communities.
-
C.
Wahkiakum River
The Wahkiakum River is a small coastal river in southwest Washington State that flows through forested terrain before emptying into the Columbia River.
-
D.
Sammamish River
The Sammamish River is a short river in King County, Washington, that drains Lake Sammamish and flows northwest through suburban communities before emptying into Lake Washington.
-
E.
Duwamish
The Duwamish are a Coast Salish Native American people indigenous to the Seattle, Washington area, with deep historical, cultural, and spiritual ties to the region’s waterways and lands.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
river watershed ⓘ |
| contains |
tributaries of the Duwamish River
ⓘ
tributaries of the Green River ⓘ |
| containsRiver |
Duwamish River
NERFINISHED
ⓘ
Green River NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| drainsInto | Puget Sound NERFINISHED ⓘ |
| ecoregion | Pacific Northwest NERFINISHED ⓘ |
| flowsThrough |
industrial areas of King County
ⓘ
suburban areas of King County ⓘ |
| hasConservationProgram |
Green-Duwamish Watershed Strategy
NERFINISHED
ⓘ
WRIA 9 salmon recovery plan ⓘ |
| hasEnvironmentalIssue |
habitat fragmentation
ⓘ
industrial contamination ⓘ stormwater pollution ⓘ |
| hasFloodControlInfrastructure | Howard A. Hanson Dam NERFINISHED ⓘ |
| hasLandUse |
agricultural land
ⓘ
forested land ⓘ industrial land ⓘ suburban land ⓘ urban land ⓘ |
| includesCity |
Auburn, Washington
NERFINISHED
ⓘ
Black Diamond, Washington NERFINISHED ⓘ Burien, Washington NERFINISHED ⓘ Covington, Washington NERFINISHED ⓘ Enumclaw, Washington NERFINISHED ⓘ Kent, Washington NERFINISHED ⓘ Maple Valley, Washington NERFINISHED ⓘ Renton, Washington NERFINISHED ⓘ SeaTac, Washington NERFINISHED ⓘ Seattle, Washington NERFINISHED ⓘ Tukwila, Washington NERFINISHED ⓘ |
| locatedIn |
King County
ⓘ
surface form:
King County, Washington
Puget Sound region NERFINISHED ⓘ Washington ⓘ
surface form:
Washington (state)
|
| majorRiverMouth | Elliott Bay NERFINISHED ⓘ |
| managedBy |
King County Department of Natural Resources and Parks
NERFINISHED
ⓘ
U.S. Army Corps of Engineers NERFINISHED ⓘ Washington State Department of Ecology NERFINISHED ⓘ |
| near | Mount Rainier National Park NERFINISHED ⓘ |
| partOf |
Puget Sound drainage basin
NERFINISHED
ⓘ
Water Resource Inventory Area 9 NERFINISHED ⓘ |
| sourceRegion | Cascade Range NERFINISHED ⓘ |
| supportsSpecies |
Pacific lamprey
NERFINISHED
ⓘ
salmon ⓘ steelhead trout ⓘ |
| WRIANumber | 9 ⓘ |
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: Green–Duwamish River watershed Description of subject: The Green–Duwamish River watershed is a major drainage basin in King County, Washington, encompassing the Green and Duwamish rivers and their tributaries as they flow from the Cascade Range through suburban and industrial areas into Puget Sound.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Green River (Washington)
subject surface form:
Green River (Washington)
this entity surface form:
Green–Duwamish watershed
this entity surface form:
Duwamish River watershed