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: 'a herd of sheep walking across a green field'. Count the number of consonants in the given sentence.

SOLUTION: 22

PROBLEM: Sentence: 'many people stand on a sidewalk holding umbrellas'. Count the number of consonants in the given sentence.

SOLUTION: 27

PROBLEM: Sentence: 'a view of a large shower with two windows near the ceiling opened slightly'. Count the number of consonants in the given sentence.

SOLUTION:
38