MAYBE
33.42/10.32	MAYBE
33.42/10.32	
33.42/10.32	Problem:
33.42/10.32	 a(x1) -> x1
33.42/10.32	 a(b(x1)) -> b(a(c(b(a(a(x1))))))
33.42/10.32	 c(b(c(x1))) -> x1
33.42/10.32	
33.42/10.32	Proof:
33.42/10.32	 Open
33.42/10.33	EOF