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 policeman on a horse is by a coke truck'. Count the number of vowels in the given sentence.

SOLUTION: 14

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 young boy at a sink with the water running and a toothbrush in hand'. Count the number of vowels in the given sentence.

SOLUTION:
20