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 while express bus at the side of a road near a stadium'. Count the number of consonants in the given sentence.

Ex Output:
24


Ex Input:
Sentence: 'some people are looking at two giraffes at a zoo'. Count the number of consonants in the given sentence.

Ex Output:
20


Ex Input:
Sentence: 'the subway train is crowded with people this time of day'. Count the number of consonants in the given sentence.

Ex Output:

29