196.75/50.36	MAYBE
196.75/50.36	
196.75/50.36	Problem:
196.75/50.36	 a(a(a(x1))) -> a(a(b(x1)))
196.75/50.36	 b(a(b(x1))) -> a(b(a(x1)))
196.75/50.36	
196.75/50.36	Proof:
196.75/50.36	 Open
196.93/50.36	EOF