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 swinging a tennis racquet in the air'. How many words contain the letter 'z' in the sentence.

Output: 0


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 bike that is leaning against a pole'. How many words contain the letter 'c' in the sentence.


Output: 0