Problem:
Score : 100 points

Problem Statement

Given a lowercase English letter c, determine whether it is a vowel. Here, there are five vowels in the English alphabet: a, e, i, o and u.

Constraints

c is a lowercase English letter.

Input

The input is given from Standard Input in the following format:

c

Output

If c is a vowel, print vowel. Otherwise, print consonant.

Sample Input 1

a

Sample Output 1

vowel

Since a is a vowel, print vowel.

Sample Input 2

z

Sample Output 2

consonant

Sample Input 3

s

Sample Output 3

consonant

Solution in Common Lisp (SBCL 1.1.14) (judge verdict: Wrong Answer)

(defparameter *vowels* '(#\a #\e #\i #\o #\u))
(defun result ()
  (if (find (read-char) *vowels*)
    (princ "vowel\n")
    (princ "consonant\n")))
(result)