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

Sentence: 'a young man with a snowboard while a crowd looks on'. Count the number of consonants in the given sentence.
25

Sentence: 'a train is traveling down the track near trees'. Count the number of vowels in the given sentence.

14