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 police officer is standing on a street corner'. Count the number of vowels in the given sentence.

Output: 16


Input: Consider Input: Sentence: 'a table is laid out with several different doughnuts and pastries'. Count the number of vowels in the given sentence.

Output: 22


Input: Consider Input: Sentence: 'a snow skier is going down a snowy hill'. Count the number of vowels in the given sentence.


Output: 11