Multnomah Channel
E105253
Multnomah Channel is a distributary of the Willamette River in northwestern Oregon, known for separating Sauvie Island from the mainland and serving as a popular route for boating and fishing near Portland.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Multnomah Channel canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T783013 — 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: Multnomah Channel Context triple: [Multnomah people, toponymSourceFor, Multnomah Channel]
-
A.
Commencement Bay
Commencement Bay is a large natural harbor on the southern end of Puget Sound in Washington State, serving as a key industrial and shipping center for the city of Tacoma.
-
B.
Elliott Bay
Elliott Bay is a large inlet of Puget Sound along the Seattle waterfront, known for its busy port, ferry traffic, and iconic views of the city skyline and surrounding mountains.
-
C.
Multnomah River
The Multnomah River is a historic waterway in Oregon whose name, derived from the Indigenous Multnomah people, has been used for various geographic and political entities in the region.
-
D.
Yaquina Bay
Yaquina Bay is a coastal estuary on the central Oregon coast known for its rich marine ecosystems, fisheries, and role as a hub for marine research and recreation.
-
E.
Gastineau Channel
Gastineau Channel is a narrow tidal waterway in southeastern Alaska that separates Douglas Island from the mainland and provides the waterfront setting for the city of Juneau.
- 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: Multnomah Channel Target entity description: Multnomah Channel is a distributary of the Willamette River in northwestern Oregon, known for separating Sauvie Island from the mainland and serving as a popular route for boating and fishing near Portland.
-
A.
Commencement Bay
Commencement Bay is a large natural harbor on the southern end of Puget Sound in Washington State, serving as a key industrial and shipping center for the city of Tacoma.
-
B.
Elliott Bay
Elliott Bay is a large inlet of Puget Sound along the Seattle waterfront, known for its busy port, ferry traffic, and iconic views of the city skyline and surrounding mountains.
-
C.
Multnomah River
The Multnomah River is a historic waterway in Oregon whose name, derived from the Indigenous Multnomah people, has been used for various geographic and political entities in the region.
-
D.
Yaquina Bay
Yaquina Bay is a coastal estuary on the central Oregon coast known for its rich marine ecosystems, fisheries, and role as a hub for marine research and recreation.
-
E.
Gastineau Channel
Gastineau Channel is a narrow tidal waterway in southeastern Alaska that separates Douglas Island from the mainland and provides the waterfront setting for the city of Juneau.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
distributary channel
ⓘ
river channel ⓘ |
| adjacentTo | Sauvie Island Wildlife Area ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crosses |
Columbia County, Oregon
ⓘ
Multnomah County, Oregon ⓘ
linked to:
Multnomah County
|
| distributaryOf | Willamette River ⓘ |
| flowsInto | Columbia River ⓘ |
| formsBoundaryOf |
Sauvie Island
ⓘ
linked to:
sauvie Island
|
| hasAlternateName | Willamette Slough ⓘ |
| hasBankSettlement |
Linnton, Portland, Oregon
ⓘ
linked to:
Linnton (across Willamette River)
Saint Helens, Oregon ⓘ
linked to:
St. Helens, Oregon
Scappoose, Oregon ⓘ |
| hasBridge | Sauvie Island Bridge ⓘ |
| hasEnvironmentalConcern |
habitat protection for fish and wildlife
ⓘ
water quality issues ⓘ |
| hasFishSpecies |
bass
ⓘ
salmon ⓘ steelhead ⓘ sturgeon ⓘ |
| hasPortionNamed | Scappoose Bay area ⓘ |
| hasRecreationActivity |
canoeing
ⓘ
kayaking ⓘ sailing ⓘ |
| isManagedBy |
State of Oregon
ⓘ
linked to:
Oregon
local port authorities ⓘ |
| isNavigationRouteFor |
pleasure craft
ⓘ
small commercial vessels ⓘ |
| length |
approximately 21 miles
ⓘ
approximately 34 kilometers ⓘ |
| locatedIn |
Portland metropolitan area
ⓘ
northwestern Oregon ⓘ |
| locatedInHydrologicUnit | Lower Willamette subbasin ⓘ |
| mouthLocation |
Columbia County, Oregon
ⓘ
near Saint Helens, Oregon ⓘ |
| near |
Portland, Oregon
ⓘ
linked to:
Portland, Oregon, United States
|
| partOf |
Columbia River watershed
ⓘ
linked to:
Columbia River Basin
Willamette River system ⓘ
linked to:
Willamette River
|
| separates |
Oregon mainland
ⓘ
Sauvie Island ⓘ
linked to:
sauvie Island
|
| sourceLocation |
Multnomah County, Oregon
ⓘ
linked to:
Multnomah County
near Portland, Oregon ⓘ |
| state | Oregon ⓘ |
| usedFor |
commercial navigation
ⓘ
recreational boating ⓘ sport fishing ⓘ |
| waterbodyType | tidally influenced channel ⓘ |
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: Multnomah Channel Description of subject: Multnomah Channel is a distributary of the Willamette River in northwestern Oregon, known for separating Sauvie Island from the mainland and serving as a popular route for boating and fishing near Portland.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.