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

Input: Consider Input: Sentence: 'the view of a pier throw rain covered window'. How many words contain the letter 'p' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'child standing in front of a stop sign on a suburban street corner'. How many words contain the letter 'u' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a woman looks at the small bird standing near her'. How many words contain the letter 'w' in the sentence.


Output: 1