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

Input: Consider Input: Sentence: 'a small plain kitchen with a white stove and microwave'. How many words contain the letter 'h' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a smiling  woman wearing a hat holds up a snowboard'. How many words contain the letter 'b' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a bed room with two beds a shelf and a small dresser'. How many words contain the letter 'z' in the sentence.


Output: 0