Lake Sammamish
E136119
Lake Sammamish is a freshwater lake in King County, Washington, known for its recreational opportunities, surrounding parks, and role as a natural boundary between several Eastside communities near Seattle.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Lake Sammamish canonical | 47 |
| Lake Sammamish State Park | 4 |
| Lake Sammamish watershed | 2 |
| Lake Sammamish (nearby) | 1 |
| Lake Sammamish State Park (adjacent/nearby) | 1 |
| Lake Sammamish basin | 1 |
| Lake Sammamish, Washington | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1128665 — 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: Lake Sammamish Context triple: [Bellevue, Washington, borderedBy, Lake Sammamish]
-
A.
Lake Washington
Lake Washington is a large freshwater lake in western Washington State, situated between Seattle and Bellevue and known for its urban shoreline, recreational activities, and floating bridges.
-
B.
Lake Quinault
Lake Quinault is a glacially carved lake on Washington State’s Olympic Peninsula, renowned for its surrounding temperate rainforest, hiking trails, and historic lodge.
-
C.
Lake Union
Lake Union is a freshwater lake in Seattle, Washington, known for its houseboats, seaplane traffic, and role as a central recreational and scenic hub within the city.
-
D.
Lake Crescent
Lake Crescent is a deep, glacially carved lake on Washington State’s Olympic Peninsula, renowned for its clear blue waters and scenic mountain surroundings.
-
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: Lake Sammamish Target entity description: Lake Sammamish is a freshwater lake in King County, Washington, known for its recreational opportunities, surrounding parks, and role as a natural boundary between several Eastside communities near Seattle.
-
A.
Lake Washington
Lake Washington is a large freshwater lake in western Washington State, situated between Seattle and Bellevue and known for its urban shoreline, recreational activities, and floating bridges.
-
B.
Lake Quinault
Lake Quinault is a glacially carved lake on Washington State’s Olympic Peninsula, renowned for its surrounding temperate rainforest, hiking trails, and historic lodge.
-
C.
Lake Union
Lake Union is a freshwater lake in Seattle, Washington, known for its houseboats, seaplane traffic, and role as a central recreational and scenic hub within the city.
-
D.
Lake Crescent
Lake Crescent is a deep, glacially carved lake on Washington State’s Olympic Peninsula, renowned for its clear blue waters and scenic mountain surroundings.
-
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 (57)
| Predicate | Object |
|---|---|
| instanceOf |
freshwater lake
ⓘ
lake ⓘ |
| adjacentTo |
City of Bellevue
ⓘ
City of Issaquah ⓘ City of Redmond ⓘ City of Renton ⓘ City of Sammamish ⓘ |
| averageDepth | about 17 meters ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| connectedTo | Lake Washington ⓘ |
| connectedVia | Sammamish River ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| elevationAboveSeaLevel | about 9 meters ⓘ |
| formsBoundaryBetween |
Redmond and Bellevue
ⓘ
Sammamish and Bellevue ⓘ
linked to:
City of Sammamish
Sammamish and Issaquah ⓘ
linked to:
Sammamish
|
| hasFishSpecies |
cutthroat trout
ⓘ
kokanee salmon ⓘ largemouth bass ⓘ smallmouth bass ⓘ yellow perch ⓘ |
| hasProtectedAreaOnShore |
Lake Sammamish State Park
ⓘ
linked to:
Lake Sammamish
|
| hasRecreationActivity |
birdwatching
ⓘ
boating ⓘ fishing ⓘ kayaking ⓘ paddleboarding ⓘ swimming ⓘ waterskiing ⓘ |
| hasShorelineUse |
private docks
ⓘ
public parks ⓘ residential development ⓘ |
| inflow |
Ebright Creek
ⓘ
George Davis Creek ⓘ Issaquah Creek ⓘ Laughing Jacobs Creek ⓘ Pine Lake Creek ⓘ Zackuse Creek ⓘ |
| length |
about 11 kilometers
ⓘ
about 7 miles ⓘ |
| locatedIn |
King County, Washington
ⓘ
linked to:
King County
Pacific Northwest ⓘ Sammamish Plateau region ⓘ Washington (state) ⓘ
linked to:
Washington
|
| locatedInEcoregion |
Puget Sound lowlands
ⓘ
linked to:
Puget Sound lowland forests
|
| locatedNear | Seattle ⓘ |
| maxDepth | about 32 meters ⓘ |
| maxWidth |
about 1.5 miles
ⓘ
about 2.4 kilometers ⓘ |
| nearbyPark |
Idylwood Park
ⓘ
Marymoor Park ⓘ Vasa Park Resort ⓘ |
| outflow | Sammamish River ⓘ |
| partOf |
Eastside (King County, Washington)
ⓘ
linked to:
Eastside of King County
|
| surfaceArea |
about 19.8 square kilometers
ⓘ
about 7.6 square miles ⓘ |
| watershed | Sammamish River watershed ⓘ |
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: Lake Sammamish Description of subject: Lake Sammamish is a freshwater lake in King County, Washington, known for its recreational opportunities, surrounding parks, and role as a natural boundary between several Eastside communities near Seattle.
Referenced by (57)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Bellevue, Washington, United States
linked to: Lake Sammamish
linked to: Lake Sammamish
linked to: Lake Sammamish
subject linked to:
western Washington
linked to: Lake Sammamish
linked to: Lake Sammamish
linked to: Lake Sammamish
linked to: Lake Sammamish