Dexter Reservoir
E876892
Dexter Reservoir is a man-made lake on the Middle Fork Willamette River in Lane County, Oregon, popular for boating, fishing, and other outdoor recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dexter Reservoir canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10547083 — 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: Dexter Reservoir Context triple: [Lowell, Oregon, locatedNear, Dexter Reservoir]
-
A.
R. L. Harris Reservoir
R. L. Harris Reservoir is a man-made lake in east-central Alabama popular for fishing, boating, and other recreational activities.
-
B.
John Martin Reservoir
John Martin Reservoir is a large man-made lake and state park in southeastern Colorado known for its water recreation, birdwatching, and role in regional water storage and flood control.
-
C.
Foster Reservoir
Foster Reservoir is a man-made lake in Linn County, Oregon, popular for boating, fishing, and other recreational activities.
-
D.
Turnpike Reservoir
Turnpike Reservoir is a man-made water body in East Providence, Rhode Island, primarily serving as a local water resource and recreational area.
-
E.
Norton Reservoir
Norton Reservoir is a man-made lake in Norton, Massachusetts, used primarily for recreation such as fishing and boating.
- 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: Dexter Reservoir Target entity description: Dexter Reservoir is a man-made lake on the Middle Fork Willamette River in Lane County, Oregon, popular for boating, fishing, and other outdoor recreation.
-
A.
R. L. Harris Reservoir
R. L. Harris Reservoir is a man-made lake in east-central Alabama popular for fishing, boating, and other recreational activities.
-
B.
John Martin Reservoir
John Martin Reservoir is a large man-made lake and state park in southeastern Colorado known for its water recreation, birdwatching, and role in regional water storage and flood control.
-
C.
Foster Reservoir
Foster Reservoir is a man-made lake in Linn County, Oregon, popular for boating, fishing, and other recreational activities.
-
D.
Turnpike Reservoir
Turnpike Reservoir is a man-made water body in East Providence, Rhode Island, primarily serving as a local water resource and recreational area.
-
E.
Norton Reservoir
Norton Reservoir is a man-made lake in Norton, Massachusetts, used primarily for recreation such as fishing and boating.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | Dexter Dam NERFINISHED ⓘ |
| createdFor | Willamette River flood control system NERFINISHED ⓘ |
| hasActivity |
camping
ⓘ
picnicking ⓘ wildlife viewing ⓘ |
| hasFacility |
boat ramps
ⓘ
day-use areas ⓘ picnic tables ⓘ restrooms ⓘ |
| hasFishSpecies |
bluegill
ⓘ
chinook salmon ⓘ crappie ⓘ largemouth bass ⓘ rainbow trout ⓘ smallmouth bass ⓘ yellow perch ⓘ |
| hasNearbyCommunity |
Dexter, Oregon
NERFINISHED
ⓘ
Lowell, Oregon NERFINISHED ⓘ |
| hasNearbyHighway | Oregon Route 58 NERFINISHED ⓘ |
| hasRecreationArea | Dexter State Recreation Site NERFINISHED ⓘ |
| hasShorelineUse | public recreation ⓘ |
| inflow | Middle Fork Willamette River NERFINISHED ⓘ |
| isUpstreamOf | Lookout Point Lake NERFINISHED ⓘ |
| locatedIn |
Lane County, Oregon
NERFINISHED
ⓘ
Oregon ⓘ |
| locatedOnRiver | Middle Fork Willamette River NERFINISHED ⓘ |
| locatedSoutheastOf | Eugene, Oregon NERFINISHED ⓘ |
| managingAgency | Oregon Parks and Recreation Department NERFINISHED ⓘ |
| nearestCity |
Dexter, Oregon
NERFINISHED
ⓘ
Lowell, Oregon NERFINISHED ⓘ |
| operator | United States Army Corps of Engineers NERFINISHED ⓘ |
| outflow | Middle Fork Willamette River NERFINISHED ⓘ |
| partOf | Willamette River basin NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ recreation ⓘ |
| region | Pacific Northwest ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ sailing ⓘ swimming ⓘ water skiing ⓘ |
| waterBodyType | impoundment ⓘ |
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: Dexter Reservoir Description of subject: Dexter Reservoir is a man-made lake on the Middle Fork Willamette River in Lane County, Oregon, popular for boating, fishing, and other outdoor recreation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.