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 PHP (5.6.30) (judge verdict: Accepted)

<?php

$stdin = fopen('php://stdin', 'r');

$buf = fgets($stdin);
$buf = trim($buf);

if (strtolower($buf) == 'a' ||
    strtolower($buf) == 'i' ||
    strtolower($buf) == 'u' ||
    strtolower($buf) == 'e' ||
    strtolower($buf) == 'o') {
    echo 'vowel';
} else {
    echo 'consonant';
}