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

Example Input: Sentence: 'an airplane in the sky trailing condensation'. How many words contain the letter 'p' in the sentence.
Example Output: 1

Example Input: Sentence: 'a bed has an empty bag and folded laundry stacked on it'. How many words contain the letter 'm' in the sentence.
Example Output: 1

Example Input: Sentence: 'three zebra stand very close to each other while eating hay'. How many words contain the letter 'd' in the sentence.
Example Output:
1