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

Example Input: Sentence: 'a man in a tie that is looking to the side'. How many words contain the letter 'm' in the sentence.
Example Output: 1

Example Input: Sentence: 'multiple birds on the ground in a parking lot'. How many words contain the letter 'm' in the sentence.
Example Output: 1

Example Input: Sentence: 'a baseball player in the middle of a swing'. How many words contain the letter 'p' in the sentence.
Example Output:
1