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 boy swinging at a tennis ball with a racquet'. Count the number of vowels in the given sentence.
14

Sentence: 'a couple of fighter jets fly through the air'. Count the number of vowels in the given sentence.
13

Sentence: 'a lot of vases varying in size, color and decoration'. Count the number of consonants in the given sentence.

24