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.

Ex Input:
Sentence: 'the large cat sits on the ledge beside a window'. Count the number of vowels in the given sentence.

Ex Output:
15


Ex Input:
Sentence: 'many white birds flying above a river that flows in front of a forest'. Count the number of consonants in the given sentence.

Ex Output:
37


Ex Input:
Sentence: 'four airplanes in a diamond formation descending downward in the sky with three of the planes releasing smoke from them'. Count the number of vowels in the given sentence.

Ex Output:

37