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: 'this old washed out photo shows a couple of people with several horses in front of a silo and barn'. Count the number of vowels in the given sentence.

Output: 31


Input: Consider Input: Sentence: 'a dirty nasty toilet that is broken in half'. Count the number of vowels in the given sentence.

Output: 12


Input: Consider Input: Sentence: 'three cross country skiers make their way across a snowy field'. Count the number of vowels in the given sentence.


Output: 18