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

Example Input: Sentence: 'a woman sitting in a chair next to a tea table in the woods'. How many words contain the letter 'i' in the sentence.
Example Output: 4

Example Input: Sentence: 'a young pitcher throws a ball on the pitchers mound while a man in red shirt looks at him'. How many words contain the letter 'z' in the sentence.
Example Output: 0

Example Input: Sentence: 'the people are waiting outside with their bicycles'. How many words contain the letter 'q' in the sentence.
Example Output:
0