MAYBE
218.95/55.43	MAYBE
218.95/55.43	
218.95/55.43	Problem:
218.95/55.43	 c(a(b(a(x1)))) -> a(b(a(b(c(c(a(x1)))))))
218.95/55.43	
218.95/55.43	Proof:
218.95/55.43	 Open
218.95/55.43	EOF