Mason County, Illinois
E691878
Mason County, Illinois is a rural county in central Illinois known for its agricultural landscape, small communities, and location along the Sangamon River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mason County, Illinois canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5852176 — 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: Mason County, Illinois Context triple: [Sangamon River, passesThrough, Mason County, Illinois]
-
A.
Macon County, Illinois
Macon County, Illinois is a largely agricultural county in the U.S. state of Illinois whose county seat and largest city is Decatur.
-
B.
Marshall County, Illinois
Marshall County, Illinois is a rural county in central Illinois known for its small communities, agricultural landscape, and location along the Illinois River.
-
C.
Madison County, Illinois
Madison County, Illinois is a county in southwestern Illinois that forms part of the St. Louis metropolitan area, encompassing a mix of industrial cities, suburbs, and rural communities.
-
D.
Morgan County, Illinois
Morgan County, Illinois is a largely rural county in west-central Illinois known for its county seat of Jacksonville and its mix of agricultural land and small communities.
-
E.
Pike County, Illinois
Pike County, Illinois is a largely rural county in western Illinois along the Mississippi River, known for its agricultural landscape, historic small towns, and location between the cities of Quincy and Springfield.
- 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: Mason County, Illinois Target entity description: Mason County, Illinois is a rural county in central Illinois known for its agricultural landscape, small communities, and location along the Sangamon River.
-
A.
Macon County, Illinois
Macon County, Illinois is a largely agricultural county in the U.S. state of Illinois whose county seat and largest city is Decatur.
-
B.
Marshall County, Illinois
Marshall County, Illinois is a rural county in central Illinois known for its small communities, agricultural landscape, and location along the Illinois River.
-
C.
Madison County, Illinois
Madison County, Illinois is a county in southwestern Illinois that forms part of the St. Louis metropolitan area, encompassing a mix of industrial cities, suburbs, and rural communities.
-
D.
Morgan County, Illinois
Morgan County, Illinois is a largely rural county in west-central Illinois known for its county seat of Jacksonville and its mix of agricultural land and small communities.
-
E.
Pike County, Illinois
Pike County, Illinois is a largely rural county in western Illinois along the Mississippi River, known for its agricultural landscape, historic small towns, and location between the cities of Quincy and Springfield.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
administrative territorial entity
ⓘ
county ⓘ |
| borderedByRiver | Sangamon River NERFINISHED ⓘ |
| country | United States of America ⓘ |
| fipsCode | 17125 ⓘ |
| governmentType | county government ⓘ |
| hasAreaCode |
217
ⓘ
309 ⓘ |
| hasCharacteristic |
agricultural landscape
ⓘ
rural ⓘ small communities ⓘ |
| hasCountySeat | Havana, Illinois NERFINISHED ⓘ |
| hasEconomicActivity |
corn farming
ⓘ
livestock production ⓘ soybean farming ⓘ |
| hasGeographicalFeature | Sangamon River NERFINISHED ⓘ |
| hasHydrologicalFeature | Illinois River NERFINISHED ⓘ |
| hasLandUse |
row-crop agriculture
ⓘ
rural residential ⓘ |
| hasLargestCity | Havana, Illinois NERFINISHED ⓘ |
| hasLegislativeBody | Mason County Board NERFINISHED ⓘ |
| hasNeighboringCounty |
Brown County, Illinois
NERFINISHED
ⓘ
Cass County, Illinois NERFINISHED ⓘ Fulton County, Illinois NERFINISHED ⓘ Logan County, Illinois NERFINISHED ⓘ Menard County, Illinois NERFINISHED ⓘ Sangamon County, Illinois NERFINISHED ⓘ Schuyler County, Illinois NERFINISHED ⓘ Tazewell County, Illinois NERFINISHED ⓘ |
| hasSettlement |
Bath, Illinois
NERFINISHED
ⓘ
Forest City, Illinois NERFINISHED ⓘ Havana, Illinois NERFINISHED ⓘ Kilbourne, Illinois NERFINISHED ⓘ Manito, Illinois NERFINISHED ⓘ Mason City, Illinois NERFINISHED ⓘ |
| isPartOf | United States Corn Belt NERFINISHED ⓘ |
| locatedIn |
Illinois
ⓘ
United States Midwest ⓘ central Illinois NERFINISHED ⓘ |
| locatedInRegion | Central Illinois NERFINISHED ⓘ |
| locatedInTimeZone | Central Time Zone ⓘ |
| namedAfter | George Mason NERFINISHED ⓘ |
| partOf | Illinois River basin NERFINISHED ⓘ |
| postalAbbreviation | IL ⓘ |
| subdivisionOf | State of Illinois NERFINISHED ⓘ |
| subdivisionType | county ⓘ |
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: Mason County, Illinois Description of subject: Mason County, Illinois is a rural county in central Illinois known for its agricultural landscape, small communities, and location along the Sangamon River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.