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: 'an old photo of a car parked on the beach with a flag flying'. Count the number of vowels in the given sentence.
Example Output: 17

Example Input: Sentence: 'a cat is sitting on a chair with its head turned to the side'. Count the number of consonants in the given sentence.
Example Output: 28

Example Input: Sentence: 'a man resting feet on a skateboard on a park curb'. Count the number of consonants in the given sentence.
Example Output:
23