195.89/50.11	MAYBE
195.89/50.11	
195.89/50.11	Problem:
195.89/50.11	 a(x1) -> x1
195.89/50.11	 a(b(x1)) -> c(x1)
195.89/50.11	 c(c(x1)) -> b(c(b(a(a(x1)))))
195.89/50.11	
195.89/50.11	Proof:
195.89/50.11	 Open
195.89/50.11	EOF