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: Wrong Answer)

package main

import (
    "fmt"
    "strings"
)

func main() {
    var str string
    fmt.Scan(&str)
    str = strings.Replace(str, "dream", "A", -1)
    str = strings.Replace(str, "erase", "B", -1)
    str = strings.Replace(str, "Aer", "", -1)
    str = strings.Replace(str, "Br", "", -1)
    str = strings.Replace(str, "A", "", -1)
    str = strings.Replace(str, "B", "", -1)
    if str == "" {
        fmt.Println("YES")
    } else {
        fmt.Println("NO")
    }
}