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

Input: Consider Input: Sentence: 'a pizza sits on the table with pepperoni cheese ricotta cheese and topped with greens'. How many words contain the letter 'q' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a crowd of people walking around a city street'. How many words contain the letter 'p' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a cat that is laying down with a mouse on top of it'. How many words contain the letter 'm' in the sentence.


Output: 1