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 speeding fast on a long board'. Count the number of consonants in the given sentence.
Example Output: 17

Example Input: Sentence: 'people stand and sit in a square in a european city'. Count the number of vowels in the given sentence.
Example Output: 19

Example Input: Sentence: 'several people line up near a beach area on a cloudless day'. Count the number of consonants in the given sentence.
Example Output:
25