MAYBE
52.34/20.67	MAYBE
52.34/20.67	
52.34/20.67	Problem:
52.34/20.67	 a(x1) -> x1
52.34/20.67	 a(b(x1)) -> c(b(c(b(c(a(x1))))))
52.34/20.67	 c(c(x1)) -> a(x1)
52.34/20.67	
52.34/20.67	Proof:
52.34/20.67	 Open
52.34/20.67	EOF