196.97/50.08	MAYBE
196.97/50.08	
196.97/50.08	Problem:
196.97/50.08	 a(x1) -> b(c(x1))
196.97/50.08	 b(a(b(x1))) -> x1
196.97/50.08	 c(c(x1)) -> a(a(a(b(x1))))
196.97/50.08	
196.97/50.08	Proof:
196.97/50.08	 Open
196.97/50.08	EOF