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 man is setting up his bird cage in his living room'. Count the number of consonants in the given sentence.
25

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

Sentence: 'several doughnuts are on a plate next to a cup of coffee'. Count the number of consonants in the given sentence.

25