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 Q]: Sentence: 'a street sign on the edge of a street'. Count the number of vowels in the given sentence.
[EX A]: 12

[EX Q]: Sentence: 'a man riding on the back of a horse'. Count the number of vowels in the given sentence.
[EX A]: 11

[EX Q]: Sentence: 'a white and brown bird is at the beach'. Count the number of vowels in the given sentence.
[EX A]:
11