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 kids near a pizza topped with greens'. Count the number of vowels in the given sentence.

Ex Output:
13


Ex Input:
Sentence: 'this old washed out photo shows a couple of people with several horses in front of a silo and barn'. Count the number of vowels in the given sentence.

Ex Output:
31


Ex Input:
Sentence: 'there is a street pole with many different signs on it'. Count the number of vowels in the given sentence.

Ex Output:

16