Question: Joe Doherty was a former volunteer of a group called what in Irish?
Sentence (from "Joe Doherty"): Joe Doherty (born 20 January 1955) is a former volunteer in the Belfast Brigade of the Provisional Irish Republican Army (IRA) who escaped during his 1981 trial for killing a member of the Special Air Service (SAS) in 1980.
Relevant evidence: Yes