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.

[EX Q]: Sentence: 'a little kitten playing on a scratching mat'. Count the number of consonants in the given sentence.
[EX A]: 24

[EX Q]: Sentence: 'a cow standing next to a fence with cows'. Count the number of consonants in the given sentence.
[EX A]: 21

[EX Q]: Sentence: 'a woman standing on the top of a hill filled with dry grass'. Count the number of vowels in the given sentence.
[EX A]:
15