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: 'flowers are landscaped to make a design of a clock'. Count the number of consonants in the given sentence.
Example Output: 25

Example Input: Sentence: 'some kids near a pizza topped with greens'. Count the number of vowels in the given sentence.
Example Output: 13

Example Input: Sentence: 'a person standing on the curb by a skate board'. Count the number of vowels in the given sentence.
Example Output:
13