Lake Mattoon
E658961
Lake Mattoon is a man-made reservoir in east-central Illinois used primarily for recreation and as a municipal water supply.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Mattoon canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6868675 — 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 Mattoon Context triple: [Mattoon, Illinois, locatedNear, Lake Mattoon]
-
A.
Lake Barrington, Illinois
Lake Barrington, Illinois is a small residential village in the Chicago metropolitan area known for its affluent communities and natural lake-centered setting.
-
B.
Wonder Lake, Illinois
Wonder Lake, Illinois is a small residential village in northeastern Illinois known for its namesake lake and suburban, community-oriented character.
-
C.
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.
-
D.
Lake Winnebago
Lake Winnebago is a large freshwater lake in east-central Wisconsin, known for its recreational fishing, boating, and role as a key feature of the Fox River–Lake Winnebago watershed.
-
E.
Round Lake
Round Lake is a small village and lake in Saratoga County, New York, known for its historic character and recreational waterfront.
- 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 Mattoon Target entity description: Lake Mattoon is a man-made reservoir in east-central Illinois used primarily for recreation and as a municipal water supply.
-
A.
Lake Barrington, Illinois
Lake Barrington, Illinois is a small residential village in the Chicago metropolitan area known for its affluent communities and natural lake-centered setting.
-
B.
Wonder Lake, Illinois
Wonder Lake, Illinois is a small residential village in northeastern Illinois known for its namesake lake and suburban, community-oriented character.
-
C.
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.
-
D.
Lake Winnebago
Lake Winnebago is a large freshwater lake in east-central Wisconsin, known for its recreational fishing, boating, and role as a key feature of the Fox River–Lake Winnebago watershed.
-
E.
Round Lake
Round Lake is a small village and lake in Saratoga County, New York, known for its historic character and recreational waterfront.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
body of water
ⓘ
reservoir ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| country |
United States
ⓘ
linked to:
United States of America
|
| createdBy | impoundment of tributaries of the Little Wabash River ⓘ |
| elevation | approximately 192 meters above sea level ⓘ |
| hasFishSpecies |
bluegill
ⓘ
channel catfish ⓘ crappie ⓘ largemouth bass ⓘ white bass ⓘ |
| hasRecreationalFacility |
campgrounds
ⓘ
picnic areas ⓘ public boat ramps ⓘ |
| hasRegulation |
boat motor size limits in some areas
ⓘ
fishing license required ⓘ |
| isPopularFor |
power boating
ⓘ
sport fishing ⓘ water sports ⓘ |
| locatedIn | Illinois ⓘ |
| locatedInCounty |
Coles County, Illinois
ⓘ
Cumberland County, Illinois ⓘ Shelby County, Illinois ⓘ |
| locatedInRegion |
east-central Illinois
ⓘ
linked to:
eastern Illinois
|
| managingAgency | City of Mattoon ⓘ |
| maximumDepth | approximately 35 feet ⓘ |
| nearCity |
Mattoon, Illinois
ⓘ
Neoga, Illinois ⓘ |
| primaryUse |
municipal water supply
ⓘ
recreation ⓘ |
| shoreLength | approximately 55 miles ⓘ |
| surfaceArea | approximately 1010 acres ⓘ |
| usedFor |
boating
ⓘ
camping ⓘ fishing ⓘ swimming ⓘ water skiing ⓘ |
| waterSupplyFor |
City of Mattoon, Illinois
ⓘ
City of Neoga, Illinois ⓘ
linked to:
Neoga, Illinois
|
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 Mattoon Description of subject: Lake Mattoon is a man-made reservoir in east-central Illinois used primarily for recreation and as a municipal water supply.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.