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

Example Input: Sentence: 'a group of people dressed professionally outside'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'child standing in front of a stop sign on a suburban street corner'. How many words contain the letter 'u' in the sentence.
Example Output: 1

Example Input: Sentence: 'a bedroom complete with a bed dresser and ceiling fan'. How many words contain the letter 'm' in the sentence.
Example Output:
2