Mason City, Iowa, United States
E297655
Mason City, Iowa, United States, is a small Midwestern city best known as the hometown of composer and playwright Meredith Willson, creator of the musical "The Music Man."
All labels observed (2)
| Label | Occurrences |
|---|---|
| Mason City, Iowa | 7 |
| Mason City, Iowa, United States canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2781803 — 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 City, Iowa, United States Context triple: [Meredith Willson, placeOfBirth, Mason City, Iowa, United States]
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A.
Muscatine, Iowa
Muscatine, Iowa is a Mississippi River city in eastern Iowa known historically for its pearl button industry and as the "Pearl of the Mississippi."
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B.
Washington, Iowa
Washington, Iowa is a small city in southeastern Iowa known for its historic downtown, agricultural surroundings, and role as a local commercial and cultural hub.
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C.
Davenport, Iowa
Davenport, Iowa is a major city along the Mississippi River in eastern Iowa, known as part of the Quad Cities metropolitan area and a regional hub for commerce and culture.
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D.
Cedar Rapids, Iowa
Cedar Rapids, Iowa is the second-largest city in the state, known as a major economic and cultural hub of eastern Iowa with a strong manufacturing base and vibrant arts scene.
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E.
West Des Moines, Iowa
West Des Moines, Iowa is a rapidly growing suburban city in the Des Moines metropolitan area known for its strong economy, retail and business centers, and high quality of 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: Mason City, Iowa, United States Target entity description: Mason City, Iowa, United States, is a small Midwestern city best known as the hometown of composer and playwright Meredith Willson, creator of the musical "The Music Man."
-
A.
Muscatine, Iowa
Muscatine, Iowa is a Mississippi River city in eastern Iowa known historically for its pearl button industry and as the "Pearl of the Mississippi."
-
B.
Washington, Iowa
Washington, Iowa is a small city in southeastern Iowa known for its historic downtown, agricultural surroundings, and role as a local commercial and cultural hub.
-
C.
Davenport, Iowa
Davenport, Iowa is a major city along the Mississippi River in eastern Iowa, known as part of the Quad Cities metropolitan area and a regional hub for commerce and culture.
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D.
Cedar Rapids, Iowa
Cedar Rapids, Iowa is the second-largest city in the state, known as a major economic and cultural hub of eastern Iowa with a strong manufacturing base and vibrant arts scene.
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E.
West Des Moines, Iowa
West Des Moines, Iowa is a rapidly growing suburban city in the Des Moines metropolitan area known for its strong economy, retail and business centers, and high quality of life.
- F. None of above. chosen
Statements (38)
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 City, Iowa, United States Description of subject: Mason City, Iowa, United States, is a small Midwestern city best known as the hometown of composer and playwright Meredith Willson, creator of the musical "The Music Man."
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mason City, Iowa
this entity surface form:
Mason City, Iowa
this entity surface form:
Mason City, Iowa
this entity surface form:
Mason City, Iowa
this entity surface form:
Mason City, Iowa
this entity surface form:
Mason City, Iowa
this entity surface form:
Mason City, Iowa