MAYBE
41.55/11.65	MAYBE
41.55/11.65	
41.55/11.65	Problem:
41.55/11.65	 a(x1) -> x1
41.55/11.65	 a(a(x1)) -> b(b(a(c(c(c(x1))))))
41.55/11.65	 c(b(x1)) -> a(x1)
41.55/11.65	
41.55/11.65	Proof:
41.55/11.65	 Open
41.55/11.66	EOF