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 man sitting on a bench in front of a boat'. Count the number of vowels in the given sentence.

Ex Output:
13


Ex Input:
Sentence: 'a picture of the inside of a house with a wheel barrel visible'. Count the number of vowels in the given sentence.

Ex Output:
23


Ex Input:
Sentence: 'a cat is shown sitting on a quilted blanket'. Count the number of vowels in the given sentence.

Ex Output:

13