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

Example Input: Sentence: 'the tennis player returns a serve of the tennis ball'. How many words contain the letter 'q' in the sentence.
Example Output: 0

Example Input: Sentence: 'the street corner is flooded deep with water'. How many words contain the letter 'f' in the sentence.
Example Output: 1

Example Input: Sentence: 'a woman in a white sundress is standing on a sunlit beach between two surfboards'. How many words contain the letter 'm' in the sentence.
Example Output:
1