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: 'some people are looking at two giraffes at a zoo'. Count the number of consonants in the given sentence.

Ex Output:
20


Ex Input:
Sentence: 'people enjoying the slopes at a ski resort on a sunny day'. Count the number of vowels in the given sentence.

Ex Output:
18


Ex Input:
Sentence: 'two cats laying down on a wooden table'. Count the number of vowels in the given sentence.

Ex Output:

12