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: 'two people ride atop an elephant, through a town as people watch'. Count the number of vowels in the given sentence.

Output: 21


Input: Consider Input: Sentence: 'sandwiches and sides are arranged on a table'. Count the number of vowels in the given sentence.

Output: 15


Input: Consider Input: Sentence: 'a dog holding a frisbee in his mouth on top of grass'. Count the number of vowels in the given sentence.


Output: 16