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: 'there is a man standing on the train'. Count the number of consonants in the given sentence.

Output: 18


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: 'a couple of people in public during a rainy day'. Count the number of vowels in the given sentence.


Output: 17