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 Go (1.6) (judge verdict: Accepted)

package main

import "fmt"

func check(b byte) string {
	switch b {
	case 'a', 'e', 'i', 'o', 'u':
		return "vowel"
	}
	return "consonant"
}

func main() {
	var s string
	fmt.Scan(&s)
	fmt.Println(check(s[0]))
}