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 woman playing with a dog in a field with a frisbee'. Count the number of vowels in the given sentence.
17

Sentence: 'a bunch of planes all flying in different directions'. Count the number of vowels in the given sentence.

15