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 in a habitat at a zoo'. Count the number of vowels in the given sentence.

Ex Output:
21

Ex Input:
Sentence: 'boats floating in the water near the shore'. Count the number of vowels in the given sentence.

Ex Output:
14

Ex Input:
Sentence: 'a young man holding a sandwhich up to his mouth'. Count the number of consonants in the given sentence.

Ex Output:
24