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: 'two women are talking while one is eating'. Count the number of vowels in the given sentence.

Ex Output:
15


Ex Input:
Sentence: 'a zebra standing alone in a dry grassland'. Count the number of consonants in the given sentence.

Ex Output:

22