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

Input: Consider Input: Sentence: 'a fire hydrant on a neighborhood street with trees and shrubs around it'. How many words contain the letter 'k' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'three children standing behind a little girl with a bat in her hands'. How many words contain the letter 'c' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'two women who are riding on a bicycle together one is holding an umbrella'. How many words contain the letter 's' in the sentence.


Output: 1