196.24/50.15	MAYBE
196.24/50.15	
196.24/50.15	Problem:
196.24/50.15	 a(a(x1)) -> x1
196.24/50.15	 b(b(x1)) -> a(b(c(x1)))
196.24/50.15	 c(c(x1)) -> b(b(b(x1)))
196.24/50.15	
196.24/50.15	Proof:
196.24/50.15	 Open
196.24/50.15	EOF