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 jockey on a horse running down a beach'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'a smiling young man sits in a chair with ties on his shoulder'. Count the number of vowels in the given sentence.

SOLUTION: 19

PROBLEM: Sentence: 'a man is playing frisbee on the grass'. Count the number of consonants in the given sentence.

SOLUTION:
19