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 PHP7 (7.0.15) (judge verdict: Accepted)

<?php

$inp = trim( fgets( STDIN ) );

$boin = ['a', 'e', 'i', 'o', 'u'];

for ( $i = 0; $i < 5; $i++ ) {
  if ( $boin[$i] === $inp ) {
    echo 'vowel';
    return;
  }
}

echo 'consonant';
?>