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

Input: Consider Input: Sentence: 'a woman is posing next to a stop sign'. How many words contain the letter 'u' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a black and white photo of a large clock on a building'. How many words contain the letter 't' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a person sitting at a counter that has a bottle on it'. How many words contain the letter 'p' in the sentence.


Output: 1