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: 'there is a broken toilet in the street'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'a man with a hat and glasses on in the midst of talking'. Count the number of vowels in the given sentence.

SOLUTION: 15

PROBLEM: Sentence: 'two young zebras standing around looking at each other'. Count the number of vowels in the given sentence.

SOLUTION:
18