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

Input: Consider Input: Sentence: 'a cat sitting on a wooden chair look at the camera'. How many words contain the letter 'd' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a group of giraffes walk across an open area'. How many words contain the letter 'm' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'batter catcher and umpire at home plate during a baseball game'. How many words contain the letter 'k' in the sentence.


Output: 0