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 young person flying through the air while riding a skateboard'. How many words contain the letter 'd' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a wooden clock with some metal parts on top of a table'. How many words contain the letter 'i' in the sentence.


Output: 1