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

Input: Consider Input: Sentence: 'a woman is standing at a fruit stand'. How many words contain the letter 'y' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a cat is laying in a piece of luggage'. How many words contain the letter 'p' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a view of some airplanes reflecting in windows'. How many words contain the letter 's' in the sentence.


Output: 3