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 man in a uniform is cutting a cake'. Count the number of consonants in the given sentence.
Example Output: 15

Example Input: Sentence: 'there is a sandwich and a bowl of food on a white plate'. Count the number of vowels in the given sentence.
Example Output: 18

Example Input: Sentence: 'a clock tower with two complex, ornate clocks'. Count the number of vowels in the given sentence.
Example Output:
12