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: 'elephant herd, in a line, walking across savanna'. Count the number of vowels in the given sentence.
15

Sentence: 'a variety of sheep and goats drinking from a pond and eating'. Count the number of vowels in the given sentence.
19

Sentence: 'a parking meter with a car parked on the side of the road'. Count the number of consonants in the given sentence.

27