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

Input: Consider Input: Sentence: 'three people that are looking at a monitor on the left side of the photo'. How many words contain the letter 'd' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a airplane is seen at the airport with other airplanes'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a cat sits on a piano and looks out the window'. How many words contain the letter 'q' in the sentence.


Output: 0