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: 'five snowboarders doing tricks on the snowboard course'. Count the number of vowels in the given sentence.

SOLUTION: 17

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

SOLUTION: 12

PROBLEM: Sentence: 'a paddle boat sits on a river near the shore'. Count the number of consonants in the given sentence.

SOLUTION:
20