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 couple of giraffe standing next to each other'. Count the number of vowels in the given sentence.

Ex Output:
16


Ex Input:
Sentence: 'a man and young girl on a tennis court in a park area'. Count the number of consonants in the given sentence.

Ex Output:
23


Ex Input:
Sentence: 'little boy siting on a stair holding a tennis racket'. Count the number of vowels in the given sentence.

Ex Output:

16