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 Pascal (FPC 2.6.2) (judge verdict: Accepted)

var a:char;
const vocal:set of char=['A','a','E','e','I','i','O','o','U','u'];
begin readln(a);
if a in vocal then writeln('vowel') else writeln('consonant'); end.