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: 'several carrots on a cutting board with a knife on top'. Count the number of consonants in the given sentence.
Example Output: 27

Example Input: Sentence: 'a bunch of hotdogs cooking on a grill'. Count the number of vowels in the given sentence.
Example Output: 11

Example Input: Sentence: 'a man in red jacket with skis and dogs in snowy field'. Count the number of vowels in the given sentence.
Example Output:
14