letter = eval(input())



if letter in "aeiou":

  print("vowel")

else:

  print("consonant")
s = eval(input())



if s in "aeiou":

  print("vowel")

else:

  print("consonant")
letter = eval(input())
if letter in "aeiou":
    print("vowel")
else:
    print("consonant")

s = eval(input())
if s in "aeiou":
    print("vowel")
else:
    print("consonant")

-letter = eval(input()) -if letter in "aeiou": +s = eval(input()) +if s in "aeiou":