196.12/50.15	MAYBE
196.12/50.15	
196.12/50.15	Problem:
196.12/50.15	 a(a(b(c(x1)))) -> b(b(a(a(x1))))
196.12/50.15	 b(x1) -> c(c(a(a(x1))))
196.12/50.15	 b(c(x1)) -> a(x1)
196.12/50.15	 a(a(c(x1))) -> x1
196.12/50.15	
196.12/50.15	Proof:
196.12/50.15	 Open
196.12/50.16	EOF