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 woman walking past a fence with animals on it'. Count the number of vowels in the given sentence.
Example Output: 15

Example Input: Sentence: 'some boys are wearing green and red vests and ties'. Count the number of vowels in the given sentence.
Example Output: 16

Example Input: Sentence: 'large white bird flying above the water on a beach'. Count the number of vowels in the given sentence.
Example Output:
16