In this task, you need to count the number of vowels (letters 'a', 'e', 'i', 'o', 'u') / consonants (all letters other than vowels) in the given sentence.

Input: Consider Input: Sentence: 'two people stand with skis on a snowy mountain'. Count the number of consonants in the given sentence.

Output: 24


Input: Consider Input: Sentence: 'a cat kneeling in front of a stuffed bear and a kids book'. Count the number of vowels in the given sentence.

Output: 18


Input: Consider Input: Sentence: 'people at an informal gathering eating under a tent'. Count the number of vowels in the given sentence.


Output: 18