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.

Input: Consider Input: Sentence: 'a cat that is sleeping on a chair'. Count the number of consonants in the given sentence.

Output: 15


Input: Consider Input: Sentence: 'pedestrians pass by a stop sign, some holding surfboards'. Count the number of vowels in the given sentence.

Output: 15


Input: Consider Input: Sentence: 'a red and white fire hydrant on the side of the street'. Count the number of vowels in the given sentence.


Output: 16