197.04/50.35	MAYBE
197.04/50.35	
197.04/50.35	Problem:
197.04/50.35	 a(x1) -> x1
197.04/50.35	 a(x1) -> b(c(x1))
197.04/50.35	 c(b(b(b(x1)))) -> b(b(a(a(x1))))
197.04/50.35	
197.04/50.35	Proof:
197.04/50.35	 Open
197.23/50.36	EOF