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 working on a suzuki motor cycle at a station'. Count the number of consonants in the given sentence.
Example Output: 23

Example Input: Sentence: 'a parked motorcycle sitting next to a white brick wall'. Count the number of consonants in the given sentence.
Example Output: 30

Example Input: Sentence: 'a black and white bird is standing on a birdhouse'. Count the number of vowels in the given sentence.
Example Output:
15