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 couple of vases that are on top of a table'. Count the number of vowels in the given sentence.
Example Output: 16

Example Input: Sentence: 'a living room filled with lots of furniture next an entrance'. Count the number of consonants in the given sentence.
Example Output: 31

Example Input: Sentence: 'a man on a tennis court with a racquet'. Count the number of vowels in the given sentence.
Example Output:
13