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: 'two zebras that are standing in the grass'. Count the number of vowels in the given sentence.

Ex Output:
11


Ex Input:
Sentence: 'a man on a skateboard using it to ride a rail'. Count the number of vowels in the given sentence.

Ex Output:
17


Ex Input:
Sentence: 'two almost identical vases next to each other'. Count the number of vowels in the given sentence.

Ex Output:

15