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: 'dogs are running around while a man on a horse passes through'. Count the number of consonants in the given sentence.
30

Sentence: 'an old train next to some empty train tracks'. Count the number of vowels in the given sentence.
12

Sentence: 'a computer desk has books and computer on it'. Count the number of vowels in the given sentence.

14