Harlan County Lake
E808199
Harlan County Lake is a large reservoir in south-central Nebraska known for flood control, irrigation storage, and outdoor recreation such as fishing and boating.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Harlan County Lake canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T4622697 — 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: Harlan County Lake Context triple: [Republican River, hasReservoir, Harlan County Lake]
-
A.
Kentucky Lake
Kentucky Lake is a large man-made reservoir in western Kentucky and Tennessee, popular for boating, fishing, and recreation and known as one of the largest artificial lakes in the eastern United States.
-
B.
Grapevine Lake
Grapevine Lake is a large reservoir in North Texas popular for boating, fishing, and outdoor recreation, serving as both a water supply and a regional leisure destination.
-
C.
Findley Lake
Findley Lake is a small hamlet and recreational lake in southwestern New York known for its lakeside tourism and proximity to the Pennsylvania border.
-
D.
Wilson Lake
Wilson Lake is a scenic freshwater lake in western Maine known for recreation such as boating, fishing, and lakeside camping.
-
E.
Wilson Lake
Wilson Lake is a man-made reservoir in northern Alabama known for hydroelectric power generation, navigation, and recreational activities along the Tennessee River.
- 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: Harlan County Lake Target entity description: Harlan County Lake is a large reservoir in south-central Nebraska known for flood control, irrigation storage, and outdoor recreation such as fishing and boating.
-
A.
Kentucky Lake
Kentucky Lake is a large man-made reservoir in western Kentucky and Tennessee, popular for boating, fishing, and recreation and known as one of the largest artificial lakes in the eastern United States.
-
B.
Grapevine Lake
Grapevine Lake is a large reservoir in North Texas popular for boating, fishing, and outdoor recreation, serving as both a water supply and a regional leisure destination.
-
C.
Findley Lake
Findley Lake is a small hamlet and recreational lake in southwestern New York known for its lakeside tourism and proximity to the Pennsylvania border.
-
D.
Wilson Lake
Wilson Lake is a man-made reservoir in northern Alabama known for hydroelectric power generation, navigation, and recreational activities along the Tennessee River.
-
E.
Wilson Lake
Wilson Lake is a scenic freshwater lake in western Maine known for recreation such as boating, fishing, and lakeside camping.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| country |
United States
ⓘ
linked to:
United States of America
|
| createdBy | Harlan County Dam ⓘ |
| hasActivity |
boat fishing
ⓘ
power boating ⓘ sailing ⓘ shoreline fishing ⓘ swimming ⓘ water skiing ⓘ |
| hasFeature |
campgrounds
ⓘ
marinas ⓘ picnic areas ⓘ public boat ramps ⓘ trails ⓘ |
| hasFishSpecies |
bluegill
ⓘ
channel catfish ⓘ crappie ⓘ flathead catfish ⓘ largemouth bass ⓘ smallmouth bass ⓘ walleye ⓘ white bass ⓘ wiper (hybrid striped bass) ⓘ |
| knownFor |
boating
ⓘ
camping ⓘ fishing ⓘ hunting in surrounding areas ⓘ |
| locatedIn |
Harlan County, Nebraska
ⓘ
Republican River basin ⓘ
linked to:
Republican River
south-central Nebraska ⓘ |
| locatedOnRiver | Republican River ⓘ |
| managingAgency | U.S. Army Corps of Engineers ⓘ |
| operator | U.S. Army Corps of Engineers ⓘ |
| partOf | U.S. Army Corps of Engineers reservoir system on the Republican River ⓘ |
| purpose |
flood control
ⓘ
irrigation storage ⓘ recreation ⓘ |
| regionServed |
Republican River Valley
ⓘ
linked to:
Republican River
|
| state | Nebraska ⓘ |
| usedFor |
agricultural irrigation support
ⓘ
downstream flow regulation ⓘ wildlife habitat support ⓘ |
| watercourse | Republican 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: Harlan County Lake Description of subject: Harlan County Lake is a large reservoir in south-central Nebraska known for flood control, irrigation storage, and outdoor recreation such as fishing and boating.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.