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 man wearing a white tie with black squares on it'. Count the number of consonants in the given sentence.
23

Sentence: 'a man sitting in a chair opening empty luggage'. Count the number of vowels in the given sentence.
15

Sentence: 'a very large group of green bananas and semi-ripe bananas'. Count the number of vowels in the given sentence.

20