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 man in a uniform is cutting a cake'. Count the number of consonants in the given sentence.

SOLUTION: 15

PROBLEM: Sentence: 'some people in line at a small stand'. Count the number of consonants in the given sentence.

SOLUTION: 17

PROBLEM: Sentence: 'a passenger trails sits in the train yard on tracks'. Count the number of vowels in the given sentence.

SOLUTION:
14