197.06/50.43	MAYBE
197.06/50.43	
197.06/50.43	Problem:
197.06/50.43	 a(a(b(a(x1)))) -> a(b(a(b(x1))))
197.06/50.43	 a(b(a(a(x1)))) -> a(a(a(a(x1))))
197.06/50.43	 a(a(a(b(x1)))) -> b(b(b(b(x1))))
197.06/50.43	
197.06/50.43	Proof:
197.06/50.43	 Open
197.06/50.44	EOF