Lake Springfield
E246669
Lake Springfield is a large man-made reservoir in central Illinois that serves as a primary source of drinking water and recreation for the Springfield area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Springfield canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2251502 — 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 Springfield Context triple: [Sangamon County, Illinois, contains, Lake Springfield]
-
A.
Cedar Lake
Cedar Lake is a popular recreational lake in Minneapolis, Minnesota, known for its beaches, trails, and natural surroundings within the city's Chain of Lakes.
-
B.
Lake Independence
Lake Independence is a residential neighborhood in Belize City, Belize, known for its dense urban community and local markets.
-
C.
Lake Sharpe
Lake Sharpe is a large reservoir on the Missouri River in South Dakota, created by the construction of Big Bend Dam and used for hydroelectric power, recreation, and irrigation.
-
D.
Lake Maxinkuckee
Lake Maxinkuckee is a natural glacial lake in northern Indiana known for its recreational activities and as the scenic setting adjacent to Culver.
-
E.
Longview Lake
Longview Lake is a large recreational reservoir in the Kansas City metropolitan area known for boating, fishing, and surrounding park facilities.
- 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 Springfield Target entity description: Lake Springfield is a large man-made reservoir in central Illinois that serves as a primary source of drinking water and recreation for the Springfield area.
-
A.
Cedar Lake
Cedar Lake is a popular recreational lake in Minneapolis, Minnesota, known for its beaches, trails, and natural surroundings within the city's Chain of Lakes.
-
B.
Lake Independence
Lake Independence is a residential neighborhood in Belize City, Belize, known for its dense urban community and local markets.
-
C.
Lake Sharpe
Lake Sharpe is a large reservoir on the Missouri River in South Dakota, created by the construction of Big Bend Dam and used for hydroelectric power, recreation, and irrigation.
-
D.
Lake Maxinkuckee
Lake Maxinkuckee is a natural glacial lake in northern Indiana known for its recreational activities and as the scenic setting adjacent to Culver.
-
E.
Longview Lake
Longview Lake is a large recreational reservoir in the Kansas City metropolitan area known for boating, fishing, and surrounding park facilities.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| constructionStartDate | 1931 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | damming of Sugar Creek ⓘ |
| elevationAboveSeaLevel | about 560 feet ⓘ |
| hasFacility |
boat ramps
ⓘ
campgrounds ⓘ fishing piers ⓘ marinas ⓘ public parks ⓘ |
| hasPart | Springfield City Water, Light & Power power plant cooling lake area ⓘ |
| hasUse |
boating
ⓘ
fishing ⓘ picnicking ⓘ swimming ⓘ water skiing ⓘ wildlife observation ⓘ |
| hasWildlife |
bluegill
ⓘ
catfish ⓘ crappie ⓘ largemouth bass ⓘ waterfowl ⓘ |
| inception | 1935 ⓘ |
| inflow | Sugar Creek ⓘ |
| locatedIn | Springfield, Illinois ⓘ |
| locatedInAdministrativeTerritory | Sangamon County, Illinois ⓘ |
| locatedInRegion |
Central Illinois
ⓘ
surface form:
central Illinois
|
| locatedInState | Illinois ⓘ |
| managedBy |
Springfield Park District
ⓘ
surface form:
Springfield Park District (for many shoreline parks)
|
| maximumDepth | about 30 feet ⓘ |
| near |
Interstate 55
ⓘ
U.S. Route 66 ⓘ
surface form:
U.S. Route 66 (historic alignment)
|
| operator | City Water, Light & Power ⓘ |
| outflow | Sugar Creek ⓘ |
| owner |
Springfield, Illinois
ⓘ
surface form:
City of Springfield, Illinois
|
| partOf | Springfield municipal water system ⓘ |
| shoreLength | about 57 miles ⓘ |
| supplyFor |
Springfield, Illinois
ⓘ
surface form:
City of Springfield, Illinois
surrounding communities in Sangamon County ⓘ |
| surfaceArea | about 4,200 acres ⓘ |
| use |
cooling water for power plant
ⓘ
drinking water supply ⓘ recreation ⓘ |
| watercourse | Sugar Creek ⓘ |
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 Springfield Description of subject: Lake Springfield is a large man-made reservoir in central Illinois that serves as a primary source of drinking water and recreation for the Springfield area.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Springfield, Illinois