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.

Ex Input:
Sentence: 'an older woman sits on a large motorcycle'. Count the number of vowels in the given sentence.

Ex Output:
13


Ex Input:
Sentence: 'a sail boat lays on it's side on the beach'. Count the number of vowels in the given sentence.

Ex Output:
14


Ex Input:
Sentence: 'a skier is being towed over the snow'. Count the number of consonants in the given sentence.

Ex Output:

17