Jefferson
E548463
Jefferson is a city in Iowa, United States, known as the birthplace of pioneering American pollster George Gallup.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Jefferson canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5539624 — 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: Jefferson Context triple: [George Gallup, placeOfBirth, Jefferson]
-
A.
Jefferson
Jefferson is the middle name of William Jefferson "Bill" Clinton, the 42nd president of the United States.
-
B.
Jefferson
Jefferson is a small city in northeastern Georgia that serves as the county seat of Jackson County and lies within the state's historic gold-mining region.
-
C.
Jefferson
Jefferson is a domestic cat known by the given name "Jefferson."
-
D.
Jefferson
Jefferson is the fictional Mississippi town that serves as the central setting in many of William Faulkner’s Yoknapatawpha County stories and novels.
-
E.
Thomas Jefferson
Thomas Jefferson was the third president of the United States, principal author of the Declaration of Independence, and a leading figure of early American political and intellectual life.
- 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: Jefferson Target entity description: Jefferson is a city in Iowa, United States, known as the birthplace of pioneering American pollster George Gallup.
-
A.
Jefferson
Jefferson is the middle name of William Jefferson "Bill" Clinton, the 42nd president of the United States.
-
B.
Jefferson
Jefferson is a small city in northeastern Georgia that serves as the county seat of Jackson County and lies within the state's historic gold-mining region.
-
C.
Jefferson
Jefferson is a domestic cat known by the given name "Jefferson."
-
D.
Jefferson
Jefferson is the fictional Mississippi town that serves as the central setting in many of William Faulkner’s Yoknapatawpha County stories and novels.
-
E.
Thomas Jefferson
Thomas Jefferson was the third president of the United States, principal author of the Declaration of Independence, and a leading figure of early American political and intellectual life.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
city
ⓘ
historic district ⓘ |
| birthPlace | Jefferson, Iowa NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| countySeatOf | Greene County, Iowa NERFINISHED ⓘ |
| elevation |
1060 feet
ⓘ
323 meters ⓘ |
| FIPSCode | 19-39475 ⓘ |
| GNISFeatureID | 0457862 ⓘ |
| governmentType | city council ⓘ |
| hasAirport | Jefferson Municipal Airport NERFINISHED ⓘ |
| hasAreaCode | 515 ⓘ |
| hasEducationalInstitution | Greene County Community School District NERFINISHED ⓘ |
| hasFeature |
Greene County courthouse
NERFINISHED
ⓘ
Lincoln Highway heritage sites NERFINISHED ⓘ |
| hasHistoricDistrict | Jefferson Downtown Commercial Historic District NERFINISHED ⓘ |
| hasMedia | Jefferson Herald NERFINISHED ⓘ |
| hasNotablePerson | George Gallup NERFINISHED ⓘ |
| hasPostalCode | 50129 ⓘ |
| hasStructure | Mahanay Memorial Carillon Tower NERFINISHED ⓘ |
| hasTransportation |
Iowa Highway 4
NERFINISHED
ⓘ
U.S. Route 30 NERFINISHED ⓘ |
| incorporatedIn | 19th century ⓘ |
| knownFor | birthplace of George Gallup ⓘ |
| locatedIn |
Greene County, Iowa
NERFINISHED
ⓘ
Iowa ⓘ Jefferson, Iowa NERFINISHED ⓘ United States Midwest ⓘ |
| locatedOn | North Raccoon River NERFINISHED ⓘ |
| namedAfter | Thomas Jefferson NERFINISHED ⓘ |
| partOf |
Jefferson Township, Greene County, Iowa
NERFINISHED
ⓘ
Midwestern United States ⓘ |
| passesThrough | Jefferson, Iowa NERFINISHED ⓘ |
| publishedIn | Jefferson, Iowa NERFINISHED ⓘ |
| serves | Jefferson, Iowa NERFINISHED ⓘ |
| state | Iowa ⓘ |
| timeZone | Central Time Zone ⓘ |
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: Jefferson Description of subject: Jefferson is a city in Iowa, United States, known as the birthplace of pioneering American pollster George Gallup.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.