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: 'an older couple getting married in front of a crowd'. Count the number of vowels in the given sentence.

Ex Output:
16


Ex Input:
Sentence: 'a street sign on the edge of a street'. Count the number of vowels in the given sentence.

Ex Output:
12


Ex Input:
Sentence: 'a baseball player swinging a bat at home plate'. Count the number of vowels in the given sentence.

Ex Output:

15