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: 'the baby is sitting by the window with a book'. Count the number of consonants in the given sentence.

SOLUTION: 24

PROBLEM: Sentence: 'red tow truck with tilted lift next to busy roadway'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'an instructional sign is placed near a fence'. Count the number of vowels in the given sentence.

SOLUTION:
15