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

Input: Consider Input: Sentence: 'he wants everyone to know that he has serious intentions for the tennis game'. How many words contain the letter 'h' in the sentence.

Output: 5


Input: Consider Input: Sentence: 'a rack full of clothes in a small bedroom'. How many words contain the letter 'o' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a couple of kids with some stuffed bears on a table'. How many words contain the letter 'a' in the sentence.


Output: 4