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 person drying a paper mache ball with a blow dryer'. Count the number of consonants in the given sentence.

Ex Output:
28


Ex Input:
Sentence: 'a cow standing next to a fence with cows'. Count the number of consonants in the given sentence.

Ex Output:
21


Ex Input:
Sentence: 'an old vw bug standing at a stop sign'. Count the number of consonants in the given sentence.

Ex Output:

20