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 runner and catcher during a baseball game'. Count the number of vowels in the given sentence.

SOLUTION: 14

PROBLEM: Sentence: 'a bathroom with a small toilet and a brown lid and a larger white toilet'. Count the number of vowels in the given sentence.

SOLUTION: 23

PROBLEM: Sentence: 'an old man helping a little girl ride a bike'. Count the number of vowels in the given sentence.

SOLUTION:
14