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

Example Input: Sentence: 'a motorcycle parked in front of a small cafe'. How many words contain the letter 'n' in the sentence.
Example Output: 2

Example Input: Sentence: 'two men playing a video game inside of a room'. How many words contain the letter 'f' in the sentence.
Example Output: 1

Example Input: Sentence: 'a young man wearing snow clothing outstretching his arms'. How many words contain the letter 'p' in the sentence.
Example Output:
0