Score : $100$ points
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.
The input is given from Standard Input in the following format:
$c$
If $c$ is a vowel, print vowel. Otherwise, print consonant.
a
vowel
Since a is a vowel, print vowel.
z
consonant
s
consonant