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

Input: Consider Input: Sentence: 'a bus station full of people walking on the side walk'. How many words contain the letter 'q' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'two cats stand beside a pink door and potted plants'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'skateboarder performing trick on side of ramp while his shirts off'. How many words contain the letter 'd' in the sentence.


Output: 2