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: 'an elephant standing on a dirt patch near a forest'. Count the number of vowels in the given sentence.

SOLUTION: 15

PROBLEM: Sentence: 'a small bathroom seen through an open door showing pedestal sink and a rust-stained toilet'. Count the number of vowels in the given sentence.

SOLUTION: 29

PROBLEM: Sentence: 'a jockey on a horse running down a beach'. Count the number of vowels in the given sentence.

SOLUTION:
13