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 room with various types of clocks and books'. Count the number of consonants in the given sentence.
23

Sentence: 'several passengers waiting at the airport outside for luggage'. Count the number of consonants in the given sentence.
31

Sentence: 'closeup of a piece of cake and fork on a plate'. Count the number of consonants in the given sentence.

19