Willamette Slough
E466702
Willamette Slough is an alternate name for Multnomah Channel, a distributary of the Willamette River in northwestern Oregon.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Willamette Slough canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4741546 — 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: Willamette Slough Context triple: [Multnomah Channel, hasAlternateName, Willamette Slough]
-
A.
Tualatin River
The Tualatin River is a tributary of the Willamette River in northwestern Oregon, known for flowing through agricultural lands and suburban communities and serving as a key source of irrigation, recreation, and wildlife habitat.
-
B.
Barker Slough
Barker Slough is a tidal freshwater channel in the Sacramento–San Joaquin Delta of Northern California that serves as an important source of drinking and irrigation water.
-
C.
Multnomah Creek
Multnomah Creek is a stream in northern Oregon that flows through the Columbia River Gorge and forms the iconic Multnomah Falls.
-
D.
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.
-
E.
Mokelumne River
The Mokelumne River is a major river in the Sierra Nevada of California, known for its scenic canyons, hydroelectric projects, and role as a vital water source for agriculture and urban areas.
- 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: Willamette Slough Target entity description: Willamette Slough is an alternate name for Multnomah Channel, a distributary of the Willamette River in northwestern Oregon.
-
A.
Tualatin River
The Tualatin River is a tributary of the Willamette River in northwestern Oregon, known for flowing through agricultural lands and suburban communities and serving as a key source of irrigation, recreation, and wildlife habitat.
-
B.
Barker Slough
Barker Slough is a tidal freshwater channel in the Sacramento–San Joaquin Delta of Northern California that serves as an important source of drinking and irrigation water.
-
C.
Multnomah Creek
Multnomah Creek is a stream in northern Oregon that flows through the Columbia River Gorge and forms the iconic Multnomah Falls.
-
D.
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.
-
E.
Mokelumne River
The Mokelumne River is a major river in the Sierra Nevada of California, known for its scenic canyons, hydroelectric projects, and role as a vital water source for agriculture and urban areas.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
distributary
ⓘ
distributary ⓘ river channel ⓘ river channel ⓘ |
| alternateNameOf | Multnomah Channel ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| distributaryOf | Willamette River ⓘ |
| flowsThroughCounty |
Columbia County, Oregon
ⓘ
Multnomah County, Oregon ⓘ
linked to:
Multnomah County
Washington County, Oregon ⓘ |
| length |
approximately 21 miles
ⓘ
approximately 34 kilometers ⓘ |
| locatedIn |
Oregon
ⓘ
northwestern Oregon ⓘ |
| locatedNearCity |
Portland, Oregon
ⓘ
linked to:
Portland, Oregon, United States
|
| mouthRiver | Columbia River ⓘ |
| partOfRiverSystem |
Columbia River system
ⓘ
linked to:
Columbia River
Willamette River system ⓘ
linked to:
Willamette River
|
| separates |
Sauvie Island
ⓘ
linked to:
sauvie Island
|
| separatesFrom | main stem of the Willamette River ⓘ |
| state | Oregon ⓘ |
| upstreamFromMouth | confluence of Willamette River and Columbia River ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ recreation ⓘ |
| waterbodyType | tidal 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: Willamette Slough Description of subject: Willamette Slough is an alternate name for Multnomah Channel, a distributary of the Willamette River in northwestern Oregon.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.