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 teddy bear that is sitting on a tree branch'. Count the number of consonants in the given sentence.
Example Output: 23

Example Input: Sentence: 'an orange suitcase with an advertisement on it sets on a pier'. Count the number of consonants in the given sentence.
Example Output: 28

Example Input: Sentence: 'a woman cutting a cake in front of some people'. Count the number of vowels in the given sentence.
Example Output:
16