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 playing with a toy and a toothbrush'. Count the number of vowels in the given sentence.

SOLUTION: 12

PROBLEM: Sentence: 'a man and young girl on a tennis court in a park area'. Count the number of consonants in the given sentence.

SOLUTION: 23

PROBLEM: Sentence: 'a group of food servers fix plants for people in a line'. Count the number of vowels in the given sentence.

SOLUTION:
18