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

Example Input: Sentence: 'a couple poses under a banner of a turkey'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'a person in a helmet riding a skateboard'. How many words contain the letter 'c' in the sentence.
Example Output: 0

Example Input: Sentence: 'a black cat taking a drink of water from the toilet'. How many words contain the letter 'f' in the sentence.
Example Output:
2