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 statnue of a bird on a branch next to a tall building'. Count the number of vowels in the given sentence.
Example Output: 17

Example Input: Sentence: 'a modern kitchen has an abundance of counter space'. Count the number of vowels in the given sentence.
Example Output: 17

Example Input: Sentence: 'a group of young men riding skateboards around traffic cones'. Count the number of consonants in the given sentence.
Example Output:
31