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: 'men and women are standing in a row with sheets of paper in their hands'. Count the number of vowels in the given sentence.
21

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

Sentence: 'a female standing and playing a game while two onlookers watch'. Count the number of vowels in the given sentence.

20