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

Input: Consider Input: Sentence: 'individuals are up and doing something fun today'. How many words contain the letter 'p' in the sentence.

Output: 1


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: 'a woman in a small cart being pulled by a miniature horse'. How many words contain the letter 's' in the sentence.


Output: 2