MAYBE
39.83/10.32	MAYBE
39.83/10.32	
39.83/10.32	Problem:
39.83/10.32	 a(a(x1)) -> b(b(c(x1)))
39.83/10.32	 a(c(x1)) -> x1
39.83/10.32	 c(b(x1)) -> a(c(a(x1)))
39.83/10.32	
39.83/10.32	Proof:
39.83/10.32	 Open
39.83/10.32	EOF