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: 'elephant herd, in a line, walking across savanna'. Count the number of vowels in the given sentence.

Output: 15


Input: Consider Input: Sentence: 'a wooden board with many pieces of food on the top'. Count the number of vowels in the given sentence.

Output: 17


Input: Consider Input: Sentence: 'young teenagers are playing frisbee on a court'. Count the number of vowels in the given sentence.


Output: 17