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 small room with a fireplace, desk and bed'. Count the number of consonants in the given sentence.
21

Sentence: 'a zebra with a gazelle in the background in a grassy field'. Count the number of vowels in the given sentence.
18

Sentence: 'a child with helmet riding on a black and white horse'. Count the number of vowels in the given sentence.

15