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: 'a very nice looking living room with pretty furniture'. Count the number of vowels in the given sentence.

Ex Output:
17

Ex Input:
Sentence: 'a police officer is standing on a street corner'. Count the number of vowels in the given sentence.

Ex Output:
16

Ex Input:
Sentence: 'a black and white picture of a street with cars, pedestrians, and cyclists'. Count the number of consonants in the given sentence.

Ex Output:
40