198.38/50.48	MAYBE
198.38/50.48	
198.38/50.48	Problem:
198.38/50.48	 a(a(b(a(x1)))) -> a(b(b(b(x1))))
198.38/50.48	 b(b(b(x1))) -> b(a(a(a(x1))))
198.38/50.48	
198.38/50.48	Proof:
198.38/50.48	 Open
198.38/50.48	EOF