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

Example Input: Sentence: 'a pizza sits on the table with pepperoni cheese ricotta cheese and topped with greens'. How many words contain the letter 'q' in the sentence.
Example Output: 0

Example Input: Sentence: 'a woman standing in the dirt looking up at an elephant'. How many words contain the letter 'b' in the sentence.
Example Output: 0

Example Input: Sentence: 'bicycles are parked outside a small charming restaurant'. How many words contain the letter 's' in the sentence.
Example Output:
4