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: 'an old design kitchen with a long counter and brown appliances'. Count the number of vowels in the given sentence.

SOLUTION: 18

PROBLEM: Sentence: 'a little kitten playing on a scratching mat'. Count the number of consonants in the given sentence.

SOLUTION: 24

PROBLEM: Sentence: 'a kitchen with metallic appliances and wooden cabinets'. Count the number of consonants in the given sentence.

SOLUTION:
29