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 pair of scissors is lying on a table with a clipped card in it's blades'. Count the number of vowels in the given sentence.
Example Output: 21

Example Input: Sentence: 'a man with a hat and glasses on in the midst of talking'. Count the number of vowels in the given sentence.
Example Output: 15

Example Input: Sentence: 'a man gets ready to catch a frisbe'. Count the number of vowels in the given sentence.
Example Output:
10