In this task, you need to count the number of words in a sentence that contain the given letter

Input: Consider Input: Sentence: 'a plastic container filled with pastry balls sitting on a counter'. How many words contain the letter 'q' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a room with a mirror and a desk with a monitor'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a child on a skate board on a brick surface'. How many words contain the letter 'a' in the sentence.


Output: 6