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

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

Output: 0


Input: Consider Input: Sentence: 'three birds perched on top of a wire fence'. How many words contain the letter 'b' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a red stop sign sits in the snow along suburban streets'. How many words contain the letter 'j' in the sentence.


Output: 0