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.

Sentence: 'a fedex truck sitting in the street with no driver'. Count the number of consonants in the given sentence.
27

Sentence: 'a baby boy with a banana in his mouth'. Count the number of vowels in the given sentence.
12

Sentence: 'a green and a white sign atop a metal post'. Count the number of consonants in the given sentence.

19