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

Example Input: Sentence: 'a giraffe grazing in pen next to a tree trunk'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'a piece of half eaten swirl cheesecake on a plate'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'a cat that is laying down on a big couch'. How many words contain the letter 'x' in the sentence.
Example Output:
0