Cecil E. Roberts
E527291
Cecil E. Roberts is an American labor leader and long-serving president of the United Mine Workers of America, known for his advocacy on behalf of coal miners’ rights and safety.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cecil E. Roberts canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1788738 — 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: Cecil E. Roberts Context triple: [United Mine Workers of America, hasLeader, Cecil E. Roberts]
-
A.
Cecil H. Green
Cecil H. Green was a British-born American geophysicist, entrepreneur, and philanthropist best known as a co-founder of Texas Instruments and a major benefactor of educational and research institutions.
-
B.
Lewis M. Rutherfurd
Lewis M. Rutherfurd was a 19th-century American lawyer-turned-astronomer and pioneering astrophotographer known for his influential work in celestial photography and astronomical instrumentation.
-
C.
Ralph B. Lloyd
Ralph B. Lloyd was an American oilman and real estate developer whose investments and land holdings played a major role in shaping urban districts in the western United States.
-
D.
George R. Roberts
George R. Roberts is an American billionaire investor and co-founder of the private equity firm Kohlberg Kravis Roberts & Co. (KKR), known as a pioneer in leveraged buyouts.
-
E.
Robert C. Jones
Robert C. Jones was an American film editor and screenwriter known for his work on numerous notable films and for winning an Academy Award for Best Film Editing.
- 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: Cecil E. Roberts Target entity description: Cecil E. Roberts is an American labor leader and long-serving president of the United Mine Workers of America, known for his advocacy on behalf of coal miners’ rights and safety.
-
A.
Cecil H. Green
Cecil H. Green was a British-born American geophysicist, entrepreneur, and philanthropist best known as a co-founder of Texas Instruments and a major benefactor of educational and research institutions.
-
B.
Lewis M. Rutherfurd
Lewis M. Rutherfurd was a 19th-century American lawyer-turned-astronomer and pioneering astrophotographer known for his influential work in celestial photography and astronomical instrumentation.
-
C.
Ralph B. Lloyd
Ralph B. Lloyd was an American oilman and real estate developer whose investments and land holdings played a major role in shaping urban districts in the western United States.
-
D.
George R. Roberts
George R. Roberts is an American billionaire investor and co-founder of the private equity firm Kohlberg Kravis Roberts & Co. (KKR), known as a pioneer in leveraged buyouts.
-
E.
Robert C. Jones
Robert C. Jones was an American film editor and screenwriter known for his work on numerous notable films and for winning an Academy Award for Best Film Editing.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
American
ⓘ
human ⓘ labor leader ⓘ trade unionist ⓘ |
| advocatesFor |
coal miners
ⓘ
collective bargaining rights ⓘ mine safety regulations ⓘ workers' health benefits ⓘ |
| affiliatedWith | AFL–CIO NERFINISHED ⓘ |
| areaOfActivism |
labor rights
ⓘ
social and economic justice for miners ⓘ workplace safety ⓘ |
| associatedWithIndustry | coal industry ⓘ |
| associatedWithRegion | Appalachia NERFINISHED ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| employer | United Mine Workers of America NERFINISHED ⓘ |
| fieldOfWork |
coal mining industry
ⓘ
labor movement ⓘ occupational safety and health ⓘ workers' rights ⓘ |
| hasEthnicGroup | White American ⓘ |
| hasGender | male ⓘ |
| knownFor |
advocacy for coal mine safety
ⓘ
advocacy for coal miners' rights ⓘ collective bargaining on behalf of miners ⓘ defense of pension and health benefits for retired miners ⓘ |
| languageSpoken | English ⓘ |
| memberOf | United Mine Workers of America NERFINISHED ⓘ |
| movement |
labor movement
ⓘ
trade union movement in the United States ⓘ |
| notableFor | presidency of the United Mine Workers of America ⓘ |
| notableRole | leader of American coal miners ⓘ |
| occupation |
labor leader
ⓘ
trade union president ⓘ |
| opposes |
anti-union legislation
ⓘ
weakening of mine safety regulations ⓘ |
| politicalActivity | support for pro-labor legislation in the United States Congress ⓘ |
| positionHeld |
International Executive Board member of the United Mine Workers of America
NERFINISHED
ⓘ
President of the United Mine Workers of America ⓘ Vice President of the United Mine Workers of America ⓘ |
| represents |
retired coal miners
ⓘ
unionized coal miners ⓘ |
| supports |
preserving miners' pensions and health care benefits
ⓘ
protecting collective bargaining rights ⓘ strengthening mine safety standards ⓘ |
| workLocation |
Appalachian coalfields
NERFINISHED
ⓘ
United States of America ⓘ |
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: Cecil E. Roberts Description of subject: Cecil E. Roberts is an American labor leader and long-serving president of the United Mine Workers of America, known for his advocacy on behalf of coal miners’ rights and safety.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.