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 white dog laying on top of a grass covered field'. Count the number of consonants in the given sentence.
24

Sentence: 'two giraffe and two gazelle in dry vegetation'. Count the number of consonants in the given sentence.
23

Sentence: 'a cat lays on a bench, cleaning itself'. Count the number of vowels in the given sentence.

11