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 fedex truck sitting in the street with no driver'. Count the number of consonants in the given sentence.

SOLUTION: 27

PROBLEM: Sentence: 'there is a lot of cars parked along side the curb'. Count the number of vowels in the given sentence.

SOLUTION: 15

PROBLEM: Sentence: 'a woman at the start of a downhill ski slope'. Count the number of consonants in the given sentence.

SOLUTION:
22