Oswego Lake
E351222
Oswego Lake is a privately managed, man-made lake in Lake Oswego, Oregon, known for its surrounding upscale residential communities and recreational use.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Oswego Lake canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3189616 — 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: Oswego Lake Context triple: [Lake Oswego, Oregon, namedAfter, Oswego Lake]
-
A.
Keuka Lake
Keuka Lake is one of New York State’s Finger Lakes, known for its distinctive Y-shape, scenic beauty, and prominent wine-producing region along its shores.
-
B.
Cayuga Lake
Cayuga Lake is the longest of New York State’s Finger Lakes, known for its scenic beauty, wineries, and role as a regional recreational and ecological hub.
-
C.
Owasco Lake
Owasco Lake is one of New York State’s Finger Lakes, known for its clear waters, scenic surroundings, and recreational activities like boating and fishing.
-
D.
Chautauqua Lake
Chautauqua Lake is a long, narrow glacial lake in western New York known for recreation, fishing, and its proximity to the historic Chautauqua Institution.
-
E.
Oneida Lake
Oneida Lake is a large, shallow lake in central New York known for its recreational fishing, boating, and role as an important link in the region’s waterways.
- 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: Oswego Lake Target entity description: Oswego Lake is a privately managed, man-made lake in Lake Oswego, Oregon, known for its surrounding upscale residential communities and recreational use.
-
A.
Keuka Lake
Keuka Lake is one of New York State’s Finger Lakes, known for its distinctive Y-shape, scenic beauty, and prominent wine-producing region along its shores.
-
B.
Cayuga Lake
Cayuga Lake is the longest of New York State’s Finger Lakes, known for its scenic beauty, wineries, and role as a regional recreational and ecological hub.
-
C.
Owasco Lake
Owasco Lake is one of New York State’s Finger Lakes, known for its clear waters, scenic surroundings, and recreational activities like boating and fishing.
-
D.
Chautauqua Lake
Chautauqua Lake is a long, narrow glacial lake in western New York known for recreation, fishing, and its proximity to the historic Chautauqua Institution.
-
E.
Oneida Lake
Oneida Lake is a large, shallow lake in central New York known for its recreational fishing, boating, and role as an important link in the region’s waterways.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
man-made lake
ⓘ
privately managed lake ⓘ reservoir ⓘ |
| accessPolicy | primarily limited to lakefront property owners and members of certain easement associations ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| cityShoreline |
Lake Oswego, Oregon
ⓘ
surface form:
Lake Oswego
|
| connectedTo | Willamette River via Oswego Creek ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| developmentType | suburban residential ⓘ |
| hasFeature |
Oswego Canal
ⓘ
multiple residential docks ⓘ private marinas ⓘ |
| hasLegalIssue | public access disputes ⓘ |
| hasShorelineCommunity |
Lake Oswego, Oregon
ⓘ
surface form:
Lake Oswego
|
| inflow |
Oswego Canal
ⓘ
Tualatin River ⓘ |
| knownFor |
boating and water sports
ⓘ
private access restrictions ⓘ scenic views ⓘ upscale residential communities along its shoreline ⓘ |
| locatedIn |
Clackamas County, Oregon
ⓘ
Lake Oswego, Oregon ⓘ Oregon ⓘ |
| locatedNear |
Portland, Oregon, United States
ⓘ
surface form:
Portland, Oregon metropolitan area
|
| managementBy | Lake Oswego Corporation ⓘ |
| nearbyCity |
Portland
ⓘ
surface form:
Portland, Oregon
|
| outflow | Oswego Creek ⓘ |
| partOf |
Willamette River
ⓘ
surface form:
Willamette River watershed
|
| primaryUse |
recreation
ⓘ
residential amenity ⓘ |
| propertyTypeAlongShore |
lakefront estates
ⓘ
luxury residences ⓘ single-family homes ⓘ |
| recreationalActivity |
boating
ⓘ
fishing ⓘ swimming ⓘ waterskiing ⓘ |
| region | Pacific Northwest ⓘ |
| shorelineUse | predominantly residential ⓘ |
| state | Oregon ⓘ |
| surfaceArea |
approximately 1.7 square kilometers
ⓘ
approximately 420 acres ⓘ |
| surfaceElevation |
approximately 30 meters
ⓘ
approximately 98 feet ⓘ |
| waterBodyType | impounded lake ⓘ |
| waterManagement | level controlled by dam and outlet structures ⓘ |
| waterSource | Tualatin River via Oswego Canal ⓘ |
| waterType | freshwater ⓘ |
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: Oswego Lake Description of subject: Oswego Lake is a privately managed, man-made lake in Lake Oswego, Oregon, known for its surrounding upscale residential communities and recreational use.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.