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 JavaScript (node.js v5.12) (judge verdict: Accepted)

'use strict';

const receive = require('fs').readFileSync('/dev/stdin', 'utf8').split(/\s/);

const main = input => {
  const c = input[0];

  const temp = ['a', 'i', 'u', 'e', 'o'].indexOf(c);
  const ans = !(temp === -1) ? 'vowel' : 'consonant';

  console.log(ans);
};

main(receive);