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

Input: Consider Input: Sentence: 'a large red sign on a metal pole'. How many words contain the letter 'q' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a dog on a deck ripping in to a plastic frisbee'. How many words contain the letter 'l' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a bed has an empty bag and folded laundry stacked on it'. How many words contain the letter 'm' in the sentence.


Output: 1