c = str.lower(eval(input()))

n = ('a', 'e', 'i', 'o', 'u')



if c in n:

    print('vowel')

else:

    print('consonant')

c = str.lower(eval(input()))



def answer(c: str) -> str:

    n = ('a', 'e', 'i', 'o', 'u')



    if c in n:

        return 'vowel'

    else:

        return 'consonant'



print((answer(c)))

c = str.lower(eval(input()))
n = ("a", "e", "i", "o", "u")
if c in n:
    print("vowel")
else:
    print("consonant")

c = str.lower(eval(input()))


def answer(c: str) -> str:
    n = ("a", "e", "i", "o", "u")
    if c in n:
        return "vowel"
    else:
        return "consonant"


print((answer(c)))

-n = ("a", "e", "i", "o", "u") -if c in n: -    print("vowel") -else: -    print("consonant") + + +def answer(c: str) -> str: +    n = ("a", "e", "i", "o", "u") +    if c in n: +        return "vowel" +    else: +        return "consonant" + + +print((answer(c)))