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 close up of a street sign with people walking near by'. Count the number of consonants in the given sentence.
Example Output: 27

Example Input: Sentence: 'asian fisherman standing up paddling boat with oar'. Count the number of vowels in the given sentence.
Example Output: 16

Example Input: Sentence: 'a close up view of some skis with a mountain behind them'. Count the number of consonants in the given sentence.
Example Output:
26