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.

[EX Q]: Sentence: 'a person is in the snow on a board'. Count the number of consonants in the given sentence.
[EX A]: 15

[EX Q]: Sentence: 'a herd of sheep are walking up a muddy hill next to a parked minivan'. Count the number of vowels in the given sentence.
[EX A]: 21

[EX Q]: Sentence: 'a tray of doughnuts with white icing on it'. Count the number of vowels in the given sentence.
[EX A]:
13