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: 'lots of sheep are standing in a field'. Count the number of vowels in the given sentence.

SOLUTION: 12

PROBLEM: Sentence: 'a plate topped with an apple and an orange next to a book'. Count the number of consonants in the given sentence.

SOLUTION: 26

PROBLEM: Sentence: 'this is an old fashion picture of a little girl and a teddy bear on a bench'. Count the number of vowels in the given sentence.

SOLUTION:
23