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: 'an large train pulling many cars of green containers'. Count the number of vowels in the given sentence.

Ex Output:
16


Ex Input:
Sentence: 'a zebra with a gazelle in the background in a grassy field'. Count the number of vowels in the given sentence.

Ex Output:
18


Ex Input:
Sentence: 'a teddy bear holding a pillow in his hands'. Count the number of vowels in the given sentence.

Ex Output:

12