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

Input: Consider Input: Sentence: 'computer and a monitor on a wooden desk next to a laptop'. How many words contain the letter 'm' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a person in the air on skis on a mountain slope'. How many words contain the letter 'w' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'five kids playing with frisbees on a sunny day'. How many words contain the letter 'p' in the sentence.


Output: 1