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 open box of pizza placed on a kitchen counter'. Count the number of consonants in the given sentence.

SOLUTION: 22

PROBLEM: Sentence: 'a large group of people on the street with some bikes'. Count the number of vowels in the given sentence.

SOLUTION: 18

PROBLEM: Sentence: 'twelve plastic containers filled with different types of food'. Count the number of vowels in the given sentence.

SOLUTION:
18