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

Example Input: Sentence: 'a large zebra standing out in a grassy field'. How many words contain the letter 'e' in the sentence.
Example Output: 3

Example Input: Sentence: 'some people are sitting around a black table'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'a couple of people standing up with wii remotes'. How many words contain the letter 'p' in the sentence.
Example Output:
3