196.18/50.15	MAYBE
196.18/50.15	
196.18/50.15	Problem:
196.18/50.15	 a(a(b(b(x1)))) -> b(b(b(a(a(a(x1))))))
196.18/50.15	 a(x1) -> x1
196.18/50.15	
196.18/50.15	Proof:
196.18/50.15	 Open
196.18/50.16	EOF