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 group of people sitting at a table writing on papers'. Count the number of consonants in the given sentence.

Ex Output:
26


Ex Input:
Sentence: 'two cats sitting with a woman near a window'. Count the number of vowels in the given sentence.

Ex Output:
13


Ex Input:
Sentence: 'young men doing skateboarding tricks in a city park'. Count the number of vowels in the given sentence.

Ex Output:

15