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: 'two cats sitting with a woman near a window'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'a black bear standing on the ground with grass'. Count the number of vowels in the given sentence.

SOLUTION: 12

PROBLEM: Sentence: 'a man stands next to a variety of luggage on a belt'. Count the number of vowels in the given sentence.

SOLUTION:
16