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: 'three black cows standing next to each other on a field'. Count the number of vowels in the given sentence.

Ex Output:
16


Ex Input:
Sentence: 'a man is holding up a snowboard with the word "source" written on it'. Count the number of consonants in the given sentence.

Ex Output:
33


Ex Input:
Sentence: 'a cat sticks it's paw into the bowl of a toilet'. Count the number of consonants in the given sentence.

Ex Output:

22