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

Input: Consider Input: Sentence: 'ancient pottery being displayed on an exhibit case'. How many words contain the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a woman smiling for the camera while on a boat'. How many words contain the letter 'e' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'the view of the harbor and a tall clock tower'. How many words contain the letter 'p' in the sentence.


Output: 0