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

Example Input: Sentence: 'a black sign that is standing in the grass'. How many words contain the letter 'f' in the sentence.
Example Output: 0

Example Input: Sentence: 'a living roomcomplete with couches chairs mantle and huge clock on the wall'. How many words contain the letter 't' in the sentence.
Example Output: 4

Example Input: Sentence: 'a huge clock carved into the white rocks and showing the time'. How many words contain the letter 'q' in the sentence.
Example Output:
0