import org.pureprogrammer.Utils;

public class Selection5 {

	public static void main(String[] args) {
		String x = Utils.uniAt(args[0], 0);
		x = x.toLowerCase();
		switch (x) {
			case "a":
			case "e":
			case "i":
			case "o":
			case "u":
				System.out.println(Utils.format("{0:c} is a vowel", x.codePointAt(0)));
				break;
			case "y":
				System.out.println("y is sometimes a vowel");
				break;
			default:
				System.out.println(Utils.format("{0:c} is a consonant", x.codePointAt(0)));
				break;
		}
	}
}