TASK DEFINITION: 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.
PROBLEM: Sentence: 'a cyclist squats beside a bull on a grassy hillside'. Count the number of vowels in the given sentence.

SOLUTION: 15

PROBLEM: Sentence: 'a man is serving pizza to a customer'. Count the number of consonants in the given sentence.

SOLUTION: 17

PROBLEM: Sentence: 'a person on skies in a snowsuit skiing down a slope'. Count the number of consonants in the given sentence.

SOLUTION:
24