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 woman tossing a frisbee on a sandy beach'. Count the number of consonants in the given sentence.

Ex Output:
20


Ex Input:
Sentence: 'a crew of people looking at an airplane'. Count the number of vowels in the given sentence.

Ex Output:
15


Ex Input:
Sentence: 'bicycle handle bars in front of a park bench'. Count the number of vowels in the given sentence.

Ex Output:

11