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 pair of men fighting over a frisbee in a grassy field'. Count the number of consonants in the given sentence.

SOLUTION: 26

PROBLEM: Sentence: 'a man gives children food to feed an elephant'. Count the number of consonants in the given sentence.

SOLUTION: 22

PROBLEM: Sentence: 'a lone street sign hangs across a signal pole'. Count the number of vowels in the given sentence.

SOLUTION:
14