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

Input: Consider Input: Sentence: 'a box filled with fresh fruit and vegetables'. How many words contain the letter 'w' in the sentence.

Output: 1

Input: Consider Input: Sentence: 'snow boarder in midflight inverted with a steep snowy slope in the background'. How many words contain the letter 'j' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a group of buses parked next to each other'. How many words contain the letter 'w' in the sentence.
Output: 0