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 boy swinging at a tennis ball with a racquet'. Count the number of vowels in the given sentence.
14

Sentence: 'a young man with a snowboard while a crowd looks on'. Count the number of consonants in the given sentence.
25

Sentence: 'a dell computer surrounded by basic computer equipment'. Count the number of vowels in the given sentence.

18