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 next to a bunch of trees'. Count the number of consonants in the given sentence.

Ex Output:
33

Ex Input:
Sentence: 'a group of men are watching two men shake hands over a table decorated with american and chinese flags'. Count the number of consonants in the given sentence.

Ex Output:
51

Ex Input:
Sentence: 'two pizzas sitting inside an oven with the light on'. Count the number of vowels in the given sentence.

Ex Output:
15