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 zebra with a gazelle in the background in a grassy field'. Count the number of vowels in the given sentence.
18

Sentence: 'a skier flying down a snow covered hill into a pool'. Count the number of consonants in the given sentence.
25

Sentence: 'two pans are on the burners of a black stove'. Count the number of consonants in the given sentence.

22