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: 'there is a picture guide to making chocolate cake'. Count the number of consonants in the given sentence.

SOLUTION: 22

PROBLEM: Sentence: 'a variety of sheep and goats drinking from a pond and eating'. Count the number of vowels in the given sentence.

SOLUTION: 19

PROBLEM: Sentence: 'a very big pretty train by a big building'. Count the number of consonants in the given sentence.

SOLUTION:
22