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 policeman on a horse is by a coke truck'. Count the number of vowels in the given sentence.
14

Sentence: 'a couple of horses are standing in a field'. Count the number of vowels in the given sentence.
15

Sentence: 'a little girl sitting at a table eating food from a plate'. Count the number of vowels in the given sentence.

19