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

Input: Consider Input: Sentence: 'a group of people dressed to ski standing in the snow'. How many words contain the letter 'b' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a red and green fire hydrant in son a sidewalk'. How many words contain the letter 'm' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a bedroom with a desk computer bed and other items'. How many words contain the letter 'y' in the sentence.


Output: 0