Lake Anna
E333369
Lake Anna is a large man-made reservoir in central Virginia known for recreation, waterfront communities, and serving as a cooling source for the North Anna Nuclear Generating Station.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lake Anna canonical | 6 |
| Lake Anna State Park | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T3151135 — 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 Anna Context triple: [Spotsylvania County, Virginia, contains, Lake Anna]
-
A.
Lake Horton
Lake Horton is a reservoir in Fayette County, Georgia, primarily used as a drinking water source and recreational area for activities like fishing and boating.
-
B.
Lake Natoma
Lake Natoma is a man-made reservoir in Northern California popular for rowing, kayaking, and other water recreation, located near Folsom along the American River.
-
C.
Lake James
Lake James is a man-made reservoir in western North Carolina known for its clear waters, recreational opportunities, and role in regional hydroelectric power generation.
-
D.
Lake Norman
Lake Norman is a large man-made reservoir in North Carolina known for boating, fishing, and upscale residential communities along its shoreline.
-
E.
Lake McKenzie
Lake McKenzie is a perched freshwater lake on K'gari (Fraser Island) in Queensland, Australia, renowned for its crystal-clear water and pure white silica sand.
- 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 Anna Target entity description: Lake Anna is a large man-made reservoir in central Virginia known for recreation, waterfront communities, and serving as a cooling source for the North Anna Nuclear Generating Station.
-
A.
Lake Horton
Lake Horton is a reservoir in Fayette County, Georgia, primarily used as a drinking water source and recreational area for activities like fishing and boating.
-
B.
Lake Natoma
Lake Natoma is a man-made reservoir in Northern California popular for rowing, kayaking, and other water recreation, located near Folsom along the American River.
-
C.
Lake James
Lake James is a man-made reservoir in western North Carolina known for its clear waters, recreational opportunities, and role in regional hydroelectric power generation.
-
D.
Lake Norman
Lake Norman is a large man-made reservoir in North Carolina known for boating, fishing, and upscale residential communities along its shoreline.
-
E.
Lake McKenzie
Lake McKenzie is a perched freshwater lake on K'gari (Fraser Island) in Queensland, Australia, renowned for its crystal-clear water and pure white silica sand.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
man-made lake
ⓘ
reservoir ⓘ |
| adjacentTo |
Lake Anna
self-linksurface differs
ⓘ
surface form:
Lake Anna State Park
|
| area | approximately 13,000 acres ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionStartDate | 1968 ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | dam on the North Anna River ⓘ |
| dateOfFlooding | early 1970s ⓘ |
| ecosystemType | freshwater lake ⓘ |
| hasNearbyPowerStation |
North Anna Nuclear Generating Station facilities
ⓘ
surface form:
North Anna Nuclear Generating Station
|
| hasPart |
Lake Anna
self-linksurface differs
ⓘ
surface form:
Lake Anna State Park
private side of Lake Anna ⓘ public side of Lake Anna ⓘ |
| hasRecreationalFacility |
boat ramps
ⓘ
campgrounds ⓘ fishing piers ⓘ marinas ⓘ |
| hasTourismActivity |
lakefront real estate development
ⓘ
short-term vacation rentals ⓘ |
| inflow |
Contrary Creek
NERFINISHED
ⓘ
Pamunkey River ⓘ
surface form:
Pamunkey Creek
|
| knownFor |
fishing tournaments
ⓘ
vacation homes ⓘ warm water on the private side ⓘ waterfront communities ⓘ |
| locatedIn |
Virginia
ⓘ
Central Virginia ⓘ
surface form:
central Virginia
|
| locatedInAdministrativeTerritory |
Louisa County, Virginia
NERFINISHED
ⓘ
Orange County, Virginia NERFINISHED ⓘ Spotsylvania County, Virginia ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| locatedNear |
Fredericksburg
ⓘ
surface form:
Fredericksburg, Virginia
Mineral, Virginia ⓘ Spotsylvania Courthouse ⓘ
surface form:
Spotsylvania Courthouse, Virginia
|
| maximumDepth | approximately 80 feet ⓘ |
| operator | Dominion Energy ⓘ |
| outflow | North Anna River ⓘ |
| partOf | North Anna River watershed ⓘ |
| purpose | cooling reservoir for North Anna Nuclear Generating Station ⓘ |
| shoreLength | over 200 miles ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ recreation ⓘ swimming ⓘ water sports ⓘ |
| watercourse | North Anna River ⓘ |
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 Anna Description of subject: Lake Anna is a large man-made reservoir in central Virginia known for recreation, waterfront communities, and serving as a cooling source for the North Anna Nuclear Generating Station.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lake Anna State Park
subject surface form:
North Anna Nuclear Generating Station
subject surface form:
North Anna Nuclear Generating Station
this entity surface form:
Lake Anna State Park
subject surface form:
Barberton, Ohio
this entity surface form:
Lake Anna State Park
this entity surface form:
Lake Anna State Park
this entity surface form:
Lake Anna State Park