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 Q]: Sentence: 'two suitcases are stacked on each other and one is black while the other is brown and yellow'. Count the number of consonants in the given sentence.
[EX A]: 46

[EX Q]: Sentence: 'a cat sleeping on a bed next to a window in a room'. Count the number of consonants in the given sentence.
[EX A]: 21

[EX Q]: Sentence: 'a few people riding on an elephants back'. Count the number of vowels in the given sentence.
[EX A]:
13