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 street is packed with people walking; many have umbrellas open'. Count the number of consonants in the given sentence.

SOLUTION: 33

PROBLEM: Sentence: 'there are many kites that are being flown over the beach'. Count the number of vowels in the given sentence.

SOLUTION: 18

PROBLEM: Sentence: 'two female skiers are coming down a hill'. Count the number of vowels in the given sentence.

SOLUTION:
13