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: 'father and son wait on their bicycle at a traffic light'. Count the number of vowels in the given sentence.
Example Output: 16

Example Input: Sentence: 'a bird pecks its way through some vegetation'. Count the number of consonants in the given sentence.
Example Output: 23

Example Input: Sentence: 'a close up of a cat laying on a stuffed animal on the ground'. Count the number of consonants in the given sentence.
Example Output:
27