Complex sentence: Jorge Vázquez Viaña (born 2 January 1939 in La Paz; Bolivia, presumed dead, May 1967; Nickname: "El Loro" or "Bigotes") was part of the intellectual revolutionary guerrilla group of Che Guevara.
Split into simpler sentences: Jorge Vázquez Viaña (born 2 January 1939 in La Paz; Bolivia, presumed dead, May 1967; Nickname: "El Loro" or "Bigotes") was a Bolivian revolutionary. He was part of the intellectual revolutionary guerrilla group of Che Guevara.