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 sail boat lays on it's side on the beach'. Count the number of vowels in the given sentence.

SOLUTION: 14

PROBLEM: Sentence: 'a group of people are gathered around a running fire hydrant'. Count the number of consonants in the given sentence.

SOLUTION: 29

PROBLEM: Sentence: 'a man playing a guitar and other musical instruments'. Count the number of vowels in the given sentence.

SOLUTION:
17