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

Example Input: Sentence: 'a glass vase with clear glass marbles in it and purple flowers coming out of the vase'. How many words contain the letter 'd' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man sanding next to a cow in a pen'. How many words contain the letter 'h' in the sentence.
Example Output: 0

Example Input: Sentence: 'a flower vase with some white flowers in it on a table'. How many words contain the letter 'q' in the sentence.
Example Output:
0