United Mine Workers of America
E39446
The United Mine Workers of America is a prominent North American labor union that historically organized coal miners and other energy industry workers, playing a major role in labor rights and workplace safety reforms.
All labels observed (2)
| Label | Occurrences |
|---|---|
| United Mine Workers of America canonical | 17 |
| United Mine Workers of America–aligned miners | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T296932 — 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: United Mine Workers of America Context triple: [American Federation of Labor, notableAffiliatedUnion, United Mine Workers of America]
-
A.
Amalgamated Association of Iron and Steel Workers
The Amalgamated Association of Iron and Steel Workers was a prominent late 19th- and early 20th-century American labor union representing skilled iron and steel workers, best known for its central role in major industrial labor conflicts such as the Homestead Strike.
-
B.
AFL–CIO
The AFL–CIO is the largest federation of labor unions in the United States, formed by the merger of major labor organizations and representing millions of workers across diverse industries.
-
C.
American Federation of Labor
The American Federation of Labor was a major U.S. national federation of labor unions, founded in 1886, that focused on organizing skilled workers and advocating for practical economic gains through collective bargaining.
-
D.
United Auto Workers
The United Auto Workers is a major American labor union representing workers in the automobile, aerospace, and other manufacturing industries, known for its influential role in collective bargaining and labor rights.
-
E.
Indian National Trade Union Congress
The Indian National Trade Union Congress is one of India’s major trade union federations, historically aligned with the Indian National Congress party and representing workers across diverse industries.
- 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: United Mine Workers of America Target entity description: The United Mine Workers of America is a prominent North American labor union that historically organized coal miners and other energy industry workers, playing a major role in labor rights and workplace safety reforms.
-
A.
Amalgamated Association of Iron and Steel Workers
The Amalgamated Association of Iron and Steel Workers was a prominent late 19th- and early 20th-century American labor union representing skilled iron and steel workers, best known for its central role in major industrial labor conflicts such as the Homestead Strike.
-
B.
AFL–CIO
The AFL–CIO is the largest federation of labor unions in the United States, formed by the merger of major labor organizations and representing millions of workers across diverse industries.
-
C.
American Federation of Labor
The American Federation of Labor was a major U.S. national federation of labor unions, founded in 1886, that focused on organizing skilled workers and advocating for practical economic gains through collective bargaining.
-
D.
United Auto Workers
The United Auto Workers is a major American labor union representing workers in the automobile, aerospace, and other manufacturing industries, known for its influential role in collective bargaining and labor rights.
-
E.
Indian National Trade Union Congress
The Indian National Trade Union Congress is one of India’s major trade union federations, historically aligned with the Indian National Congress party and representing workers across diverse industries.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
labor union
ⓘ
organization ⓘ trade union ⓘ |
| affiliatedWith | AFL–CIO ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| focusesOn |
collective bargaining agreements
ⓘ
mine safety standards ⓘ pensions and health benefits ⓘ workers’ compensation ⓘ |
| formerHeadquartersLocation |
Indianapolis
ⓘ
surface form:
Indianapolis, Indiana
Washington, D.C. ⓘ |
| founded | 1890 ⓘ |
| foundedBy |
John Mitchell
ⓘ
other American labor organizers ⓘ |
| hasLeader | Cecil E. Roberts ⓘ |
| hasMembershipType | industrial union membership ⓘ |
| hasOrganizationalStructure |
districts
ⓘ
international executive board ⓘ local unions ⓘ |
| hasPublication | UMWA Journal ⓘ |
| headquartersLocation | Triangle, Virginia ⓘ |
| historicalRole |
advocate for mine safety legislation
ⓘ
influencer of New Deal labor policy ⓘ major force in American labor movement ⓘ participant in major coal strikes ⓘ |
| industryRepresented |
coal mining
ⓘ
energy industry ⓘ health care ⓘ manufacturing ⓘ public sector ⓘ |
| languageOfWorkOrName | English ⓘ |
| leaderTitle | International President ⓘ |
| legalStatus | nonprofit organization ⓘ |
| motto | Working Families, Standing Together ⓘ |
| notableEventInHistory |
Battle of Blair Mountain
ⓘ
Ludlow strike ⓘ Pittston Coal strike ⓘ West Virginia Mine Wars ⓘ |
| notableFor |
collective bargaining
ⓘ
labor rights advocacy ⓘ organizing coal miners ⓘ strike actions ⓘ workplace safety reforms ⓘ |
| officeHeldBy | Cecil E. Roberts ⓘ |
| primaryRegionOfActivity |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
|
| website | https://umwa.org ⓘ |
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: United Mine Workers of America Description of subject: The United Mine Workers of America is a prominent North American labor union that historically organized coal miners and other energy industry workers, playing a major role in labor rights and workplace safety reforms.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
American Federation of Labor
this entity surface form:
United Mine Workers of America–aligned miners