196.74/50.24	MAYBE
196.74/50.24	
196.74/50.24	Problem:
196.74/50.24	 a(a(x1)) -> b(x1)
196.74/50.24	 a(b(x1)) -> c(c(x1))
196.74/50.24	 b(c(x1)) -> b(a(a(x1)))
196.74/50.24	
196.74/50.24	Proof:
196.74/50.24	 Open
196.74/50.24	EOF