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

Input: Consider Input: Sentence: 'the jet is flying through the sky during the day'. How many words contain the letter 'i' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a group of people holding kites walking on a beach'. How many words contain the letter 'x' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a skier with a backpack trudges up a snowy hillside'. How many words contain the letter 's' in the sentence.


Output: 4