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

Example Input: Sentence: 'a horse and a donkey stand in a fenced field'. How many words contain the letter 'd' in the sentence.
Example Output: 5

Example Input: Sentence: 'a young skateboarder is performing tricks in a driveway'. How many words contain the letter 'd' in the sentence.
Example Output: 2

Example Input: Sentence: 'a small red bike that is parked inside a house'. How many words contain the letter 'z' in the sentence.
Example Output:
0