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

Example Input: Sentence: 'living room that has boxes packed for moving'. How many words contain the letter 'u' in the sentence.
Example Output: 0

Example Input: Sentence: 'a batter sings his bat at a baseball game'. How many words contain the letter 'h' in the sentence.
Example Output: 1

Example Input: Sentence: 'a large green airplane that is parked on a runway'. How many words contain the letter 'i' in the sentence.
Example Output:
2