196.45/50.37	MAYBE
196.45/50.37	
196.45/50.37	Problem:
196.45/50.37	 a(a(b(a(a(a(a(x1))))))) -> a(a(a(a(a(a(b(a(a(b(a(a(a(b(x1))))))))))))))
196.45/50.37	
196.45/50.37	Proof:
196.45/50.37	 Open
196.45/50.38	EOF