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: 'pedestrians pass by a stop sign, some holding surfboards'. Count the number of vowels in the given sentence.
Example Output: 15

Example Input: Sentence: 'a open box of pizza placed on a kitchen counter'. Count the number of consonants in the given sentence.
Example Output: 22

Example Input: Sentence: 'four trains and cargo boxes on multiple tracks'. Count the number of consonants in the given sentence.
Example Output:
25