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: 'two women are talking while one is eating'. Count the number of vowels in the given sentence.
15

Sentence: 'a white toilet with a wooden toilet seat on top of it'. Count the number of vowels in the given sentence.
20

Sentence: 'a piece of bread with banana slices and cream on it'. Count the number of vowels in the given sentence.

18