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: 'two balls of yard and needles on a table'. Count the number of vowels in the given sentence.
12

Sentence: 'two men are standing next to a brownish black elephant'. 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