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 runner and catcher during a baseball game'. Count the number of vowels in the given sentence.
14

Sentence: 'a group of people are attending a wedding'. Count the number of vowels in the given sentence.
15

Sentence: 'a zebra with a gazelle in the background in a grassy field'. Count the number of vowels in the given sentence.

18