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 stop sign on the side of the road has a paper taped on it'. Count the number of consonants in the given sentence.
26

Sentence: 'a bookstore has a hand painted sign on the window'. Count the number of consonants in the given sentence.

24