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 baby girl playing with a big white teddy bear'. Count the number of consonants in the given sentence.

SOLUTION: 25

PROBLEM: Sentence: 'a man picks bananas that are still green'. Count the number of vowels in the given sentence.

SOLUTION: 12

PROBLEM: Sentence: 'a red fire hydrant sticking out in the middle of nowhere'. Count the number of vowels in the given sentence.

SOLUTION:
17