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: 'two guys talking on their cell phones while drinking'. Count the number of vowels in the given sentence.

Ex Output:
14


Ex Input:
Sentence: 'a person in yellow pants in on a snowboard'. Count the number of vowels in the given sentence.

Ex Output:
13


Ex Input:
Sentence: 'tiny toy shaped like a dog next to a smaller rectangular toy'. Count the number of vowels in the given sentence.

Ex Output:

18