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

Input: Consider Input: Sentence: 'the facades of the buildings in the row are all the same'. How many words contain the letter 'f' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a person in a helmet riding a skateboard'. How many words contain the letter 'c' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a woman holding a baseball bat with a man catching behind her'. How many words contain the letter 'm' in the sentence.


Output: 2