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: 'an older couple getting married in front of a crowd'. Count the number of vowels in the given sentence.

SOLUTION: 16

PROBLEM: Sentence: 'a boy swinging his bat towards a baseball'. Count the number of vowels in the given sentence.

SOLUTION: 12

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

SOLUTION:
15