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 group of bananas sits on a table trough a set of bars'. Count the number of vowels in the given sentence.
Example Output: 18

Example Input: Sentence: 'a toddler smiling with a bear behind them'. Count the number of consonants in the given sentence.
Example Output: 22

Example Input: Sentence: 'this lady and man are standing near a bus'. Count the number of vowels in the given sentence.
Example Output:
12