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.

Example Input: Sentence: 'a doll house filled with many different toys'. Count the number of consonants in the given sentence.
Example Output: 24

Example Input: Sentence: 'an older woman sits on a large motorcycle'. Count the number of vowels in the given sentence.
Example Output: 13

Example Input: Sentence: 'a bird sitting on the branch of a tree'. Count the number of vowels in the given sentence.
Example Output:
11