198.07/50.71	MAYBE
198.07/50.71	
198.07/50.71	Problem:
198.07/50.71	 a(b(a(b(a(a(a(a(x1)))))))) -> a(a(a(a(a(b(a(b(a(a(a(b(a(b(x1))))))))))))))
198.07/50.71	
198.07/50.71	Proof:
198.07/50.71	 Open
198.07/50.72	EOF