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 little baby is sitting in a baseball glove'. Count the number of consonants in the given sentence.
Example Output: 22

Example Input: Sentence: 'a couple lighting a blaze of candles on a decorated cake'. Count the number of consonants in the given sentence.
Example Output: 26

Example Input: Sentence: 'a statue of an elephant in a park next to a street'. Count the number of vowels in the given sentence.
Example Output:
17