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 riding on the back of a horse'. Count the number of vowels in the given sentence.

Output: 11


Input: Consider Input: Sentence: 'a television with a baby's picture sits on a partition in an office building'. Count the number of consonants in the given sentence.

Output: 35


Input: Consider Input: Sentence: 'an airplane flies into the pale blue sky'. Count the number of consonants in the given sentence.


Output: 19