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: 'dog with collar next to open window in front of building'. Count the number of consonants in the given sentence.

SOLUTION: 30

PROBLEM: Sentence: 'a black bird sits in a flower boy'. Count the number of consonants in the given sentence.

SOLUTION: 17

PROBLEM: Sentence: 'a close-up of a cow's head with a ring through its nose'. Count the number of vowels in the given sentence.

SOLUTION:
17