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

Sentence: 'a man is standing outside with a slice of pizza'. Count the number of consonants in the given sentence.
22

Sentence: 'a large blue and green clock hanging by chains'. Count the number of consonants in the given sentence.

25