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 couple of women are playing video games together'. Count the number of vowels in the given sentence.

SOLUTION: 19

PROBLEM: Sentence: 'a snowboarder does a jump on a dark course'. Count the number of vowels in the given sentence.

SOLUTION: 15

PROBLEM: Sentence: 'a boat in a harbor with trees in the skyline'. Count the number of consonants in the given sentence.

SOLUTION:
21