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: 'there is a sandwich and a bowl of food on a white plate'. Count the number of vowels in the given sentence.
18

Sentence: 'an open street car driving down a city street'. Count the number of consonants in the given sentence.

24