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

Input: Consider 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.

Output: 0

Input: Consider Input: Sentence: 'a train on the side of a road on the edge of the water'. How many words contain the letter 'u' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a man who is sitting on a train looking down'. How many words contain the letter 'z' in the sentence.
Output: 0