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 man in a cowboy hat attempts to throw a disc shaped object'. Count the number of consonants in the given sentence.

Output: 31


Input: Consider Input: Sentence: 'three black cows standing next to each other on a field'. Count the number of vowels in the given sentence.

Output: 16


Input: Consider Input: Sentence: 'a cat lies asleep in the middle of a mattress'. Count the number of vowels in the given sentence.


Output: 15