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: 'a double-decker red bus on a london street'. Count the number of vowels in the given sentence.

Ex Output:
14


Ex Input:
Sentence: 'tennis player crawling on the floor with his tennis racket on a tennis court'. Count the number of consonants in the given sentence.

Ex Output:
41


Ex Input:
Sentence: 'a bed is covered with a plaid blanket and topped with a fish pillow'. Count the number of vowels in the given sentence.

Ex Output:

20