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 while express bus at the side of a road near a stadium'. Count the number of consonants in the given sentence.

SOLUTION: 24

PROBLEM: Sentence: 'the woman is happy to be standing in the kitchen'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'we see a large variety of donuts and pastry'. Count the number of consonants in the given sentence.

SOLUTION:
21