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 policeman on a horse is by a coke truck'. Count the number of vowels in the given sentence.
Example Output: 14

Example Input: Sentence: 'a man swinging a racquet in front of a crowd'. Count the number of consonants in the given sentence.
Example Output: 22

Example Input: Sentence: 'a refrigerator surrounded by wood cabinets and single beds in a trailer'. Count the number of vowels in the given sentence.
Example Output:
24