Campbell, Ohio
E527459
Campbell, Ohio is a small industrial city in northeastern Ohio that forms part of the Youngstown metropolitan area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Campbell, Ohio canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5296186 — 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: Campbell, Ohio Context triple: [Mahoning County, Ohio, contains, Campbell, Ohio]
-
A.
Cambridge, Ohio
Cambridge, Ohio is a small city in eastern Ohio known as a regional crossroads and historic community in Guernsey County.
-
B.
Collins, Ohio
Collins, Ohio is an unincorporated rural community located within Huron County in the U.S. state of Ohio.
-
C.
Wapakoneta, Ohio
Wapakoneta, Ohio is a small city in western Ohio best known as the hometown of astronaut Neil Armstrong and for its strong ties to aerospace history.
-
D.
Wakeman, Ohio
Wakeman, Ohio is a small village in northern Ohio known for its rural character and location within Huron County.
-
E.
Boardman, Ohio
Boardman, Ohio is a large suburban community and commercial hub near Youngstown in northeastern Ohio.
- 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: Campbell, Ohio Target entity description: Campbell, Ohio is a small industrial city in northeastern Ohio that forms part of the Youngstown metropolitan area.
-
A.
Cambridge, Ohio
Cambridge, Ohio is a small city in eastern Ohio known as a regional crossroads and historic community in Guernsey County.
-
B.
Collins, Ohio
Collins, Ohio is an unincorporated rural community located within Huron County in the U.S. state of Ohio.
-
C.
Wapakoneta, Ohio
Wapakoneta, Ohio is a small city in western Ohio best known as the hometown of astronaut Neil Armstrong and for its strong ties to aerospace history.
-
D.
Wakeman, Ohio
Wakeman, Ohio is a small village in northern Ohio known for its rural character and location within Huron County.
-
E.
Boardman, Ohio
Boardman, Ohio is a large suburban community and commercial hub near Youngstown in northeastern Ohio.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
city
ⓘ
municipality ⓘ |
| areaCode |
234
ⓘ
330 ⓘ |
| borderedBy |
Coitsville Township, Ohio
NERFINISHED
ⓘ
Struthers, Ohio NERFINISHED ⓘ Youngstown, Ohio NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Mahoning County, Ohio NERFINISHED ⓘ |
| crossedByRiver | Mahoning River NERFINISHED ⓘ |
| elevation | approximately 1,000 feet above sea level ⓘ |
| FIPSCode | 39-11038 ⓘ |
| GNISFeatureID | 1064510 ⓘ |
| governmentType | mayor–council government ⓘ |
| hasCityCouncil | Campbell City Council NERFINISHED ⓘ |
| hasHighSchool | Campbell Memorial High School NERFINISHED ⓘ |
| hasIndustrialHistory | steel industry ⓘ |
| hasMajorIndustryHistory | Youngstown Sheet and Tube Company NERFINISHED ⓘ |
| hasMayor | Mayor of Campbell, Ohio ⓘ |
| hasPublicSchoolDistrict | Campbell City School District NERFINISHED ⓘ |
| hasRailInfrastructure | freight rail lines ⓘ |
| incorporatedAsCity | 1926 ⓘ |
| incorporatedAsVillage | 1908 ⓘ |
| locatedIn |
Mahoning County urban core
ⓘ
Mahoning Valley NERFINISHED ⓘ United States Midwest ⓘ northeastern Ohio NERFINISHED ⓘ |
| metropolitanStatisticalArea | Youngstown–Warren–Boardman, OH–PA MSA NERFINISHED ⓘ |
| namedAfter | James A. Campbell NERFINISHED ⓘ |
| partOf |
Youngstown metropolitan area
NERFINISHED
ⓘ
Youngstown–Warren metropolitan area NERFINISHED ⓘ |
| populationTrend | post-industrial decline ⓘ |
| postalCode | 44405 ⓘ |
| previousName | East Youngstown NERFINISHED ⓘ |
| primaryLandUse |
industrial
ⓘ
residential ⓘ |
| region |
Rust Belt
NERFINISHED
ⓘ
northeastern Ohio industrial belt ⓘ |
| settlementType | small industrial city ⓘ |
| state | Ohio ⓘ |
| timezone | Eastern Time Zone ⓘ |
| timezoneDST |
Eastern Time Zone
ⓘ
surface form:
Eastern Daylight Time
|
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: Campbell, Ohio Description of subject: Campbell, Ohio is a small industrial city in northeastern Ohio that forms part of the Youngstown metropolitan area.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.