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: 'two people tgat are having fun skiing down a mountain slope'. Count the number of consonants in the given sentence.
29

Sentence: 'a living room with some couches and plants inside of it'. Count the number of vowels in the given sentence.

18