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 giraffe standing next to each other in a habitat at a zoo'. Count the number of vowels in the given sentence.

Ex Output:
21


Ex Input:
Sentence: 'a pizza sitting on a table near a glass and a candle'. Count the number of vowels in the given sentence.

Ex Output:
17


Ex Input:
Sentence: 'people stand and sit in a square in a european city'. Count the number of vowels in the given sentence.

Ex Output:

19