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

Example Input: Sentence: 'dental personnel in dentist office standing in front of a computer screen'. How many words contain the letter 'w' in the sentence.
Example Output: 0

Example Input: Sentence: 'a crowd of people walking around a city street'. How many words contain the letter 'p' in the sentence.
Example Output: 1

Example Input: Sentence: 'the hotdog has mustard and bacon on it'. How many words contain the letter 'v' in the sentence.
Example Output:
0