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: 'pedestrians pass by a stop sign, some holding surfboards'. Count the number of vowels in the given sentence.

Ex Output:
15


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 military grade jets flies through clear skies'. Count the number of vowels in the given sentence.

Ex Output:

15