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

Example Input: Sentence: 'a teenager and child are fighting for a frisbee'. How many words contain the letter 'm' in the sentence.
Example Output: 0

Example Input: Sentence: 'a sign reading butt street on the corner of a building with a no parking sign below it'. How many words contain the letter 'h' in the sentence.
Example Output: 2

Example Input: Sentence: 'an arched gallery of a library with floor to ceiling bookshelves'. How many words contain the letter 'q' in the sentence.
Example Output:
0