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 small plane sits at the end of a small runway'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'a boat that is sitting inside of the water'. Count the number of vowels in the given sentence.

SOLUTION: 14

PROBLEM: Sentence: 'a body of water filled with several boats'. Count the number of vowels in the given sentence.

SOLUTION:
13