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 older woman sits on a large motorcycle'. Count the number of vowels in the given sentence.

SOLUTION: 13

PROBLEM: Sentence: 'a fedex truck sitting in the street with no driver'. Count the number of consonants in the given sentence.

SOLUTION: 27

PROBLEM: Sentence: 'two giraffes are standing at a wild animal park'. Count the number of vowels in the given sentence.

SOLUTION:
15