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 jockey on a horse running down a beach'. Count the number of vowels in the given sentence.
Example Output: 13

Example Input: Sentence: 'a man riding a ramp on a skateboard at a park'. Count the number of consonants in the given sentence.
Example Output: 20

Example Input: Sentence: 'a wooden board with many pieces of food on the top'. Count the number of vowels in the given sentence.
Example Output:
17