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.

Sentence: 'a man running and reaching to catch a frisbee on the beach'. Count the number of vowels in the given sentence.
18

Sentence: 'a teddy bear that is sitting on a tree branch'. Count the number of consonants in the given sentence.
23

Sentence: 'a couple of giraffes are standing in a grassy field'. Count the number of vowels in the given sentence.

17