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 girls who are both biting a chocolate doughnut'. Count the number of consonants in the given sentence.

SOLUTION: 26

PROBLEM: Sentence: 'a man holding a child next to a double decker bus'. Count the number of vowels in the given sentence.

SOLUTION: 15

PROBLEM: Sentence: 'there is an old time truck that appears to be serving food'. Count the number of vowels in the given sentence.

SOLUTION:
18