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 on a green field throwing a baseball'. Count the number of vowels in the given sentence.
Example Output: 14

Example Input: Sentence: 'small train pulling passengers like something you see in an amusement park'. Count the number of vowels in the given sentence.
Example Output: 24

Example Input: Sentence: 'a man carrying one brown and one tan stuffed bear standing in front of a car poster'. Count the number of vowels in the given sentence.
Example Output:
24