#!/usr/bin/env python3;
import Utils
import sys

# Begin Main
x = sys.argv[1][0]
x = x.lower()
for case in Utils.switch (x) :
	if case("a") : pass
	if case("e") : pass
	if case("i") : pass
	if case("o") : pass
	if case("u") :
		print("{0:c} is a vowel".format(ord(x[0])))
		break
	if case("y") :
		print("y is sometimes a vowel")
		break
	if case() :
		print("{0:c} is a consonant".format(ord(x[0])))
		break