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

Input: Consider Input: Sentence: 'unusual round vase with flower stems inside it'. How many words contain the letter 'c' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a airplane that has a propeller on the wing'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'there is a plate of salad next to a news paper'. How many words contain the letter 'h' in the sentence.


Output: 1