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 crowd of people at a festival type event in front of a clock tower'. Count the number of consonants in the given sentence.

Ex Output:
33


Ex Input:
Sentence: 'the restroom has a checkered floor, shower, sink, and toilet'. Count the number of vowels in the given sentence.

Ex Output:
18


Ex Input:
Sentence: 'a white bus is driving down the street'. Count the number of vowels in the given sentence.

Ex Output:

11