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

Example Input: Sentence: 'a large red sign on a metal pole'. How many words contain the letter 'q' in the sentence.
Example Output: 0

Example Input: Sentence: 'many different species of sheep in display at a museum'. How many words contain the letter 'p' in the sentence.
Example Output: 3

Example Input: Sentence: 'a women who is talking on her cell phone'. How many words contain the letter 'f' in the sentence.
Example Output:
0