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

Input: Consider Input: Sentence: 'a couple sitting on seats on a train'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a man showing a piece of hardware he took apart'. How many words contain the letter 'y' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a man in white shirt laying on grassy field with a frisbee'. How many words contain the letter 'l' in the sentence.


Output: 2