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 man smiles while picking green bananas'. Count the number of vowels in the given sentence.

Ex Output:
15


Ex Input:
Sentence: 'a giant puppet show between an elephant and child'. Count the number of consonants in the given sentence.

Ex Output:
26


Ex Input:
Sentence: 'a man holding a child next to a double decker bus'. Count the number of vowels in the given sentence.

Ex Output:

15