196.13/50.15	MAYBE
196.13/50.15	
196.13/50.15	Problem:
196.13/50.15	 a(x1) -> b(x1)
196.13/50.15	 b(b(a(c(x1)))) -> c(c(a(a(a(a(x1))))))
196.13/50.15	
196.13/50.15	Proof:
196.13/50.15	 Open
196.13/50.16	EOF