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 jetliner with a space shuttle on its back next to a fighter jet'. How many words contain the letter 'm' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a black and white photo of a very crowded tropical beach'. How many words contain the letter 'p' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'two women are wine tasting at a store'. How many words contain the letter 's' in the sentence.


Output: 2