Premise: Frank Zappa . He began writing classical music in high school , while at the same time playing drums in rhythm and blues bands ; later switching to electric guitar . Unlike many other rock musicians of his era , he personally disapproved of and seldom used drugs , but supported their decriminalization and regulation . During Zappa 's lifetime , he was a highly productive and prolific artist , earning widespread acclaim from critics and fellow musicians .
Hypothesis: Frank Zappa is not a musician.
Label: CONTRADICTION