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 jumping in the air with a skateboard'. Count the number of vowels in the given sentence.
14

Sentence: 'a bathroom with yellow tiles and a tub mirror and a toilet'. Count the number of vowels in the given sentence.
19

Sentence: 'there are some delicious doughnuts for sale for people'. Count the number of vowels in the given sentence.

21