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 woman playing with a dog in a field with a frisbee'. Count the number of vowels in the given sentence.

SOLUTION: 17

PROBLEM: Sentence: 'a man sitting on a bench in front of a boat'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'a man swinging a baseball bat on a field'. Count the number of vowels in the given sentence.

SOLUTION:
13