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.

Example Input: Sentence: 'a group of snowboarders in short sleeves on the slopes'. Count the number of consonants in the given sentence.
Example Output: 28

Example Input: Sentence: 'a snowboarder does a jump on a dark course'. Count the number of vowels in the given sentence.
Example Output: 15

Example Input: Sentence: 'she is standing in the proper stance to hit the ball'. Count the number of vowels in the given sentence.
Example Output:
14

