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

Example Input: Sentence: 'a box filled with fresh fruit and vegetables'. How many words contain the letter 'w' in the sentence.
Example Output: 1

Example Input: Sentence: 'a person that is playing a tennis game'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'two people riding on a buggy pulled by a horse on a dirt road'. How many words contain the letter 'k' in the sentence.
Example Output:
0