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 man holding an owl in a lush green field'. How many words contain the letter 'y' in the sentence.
Example Output: 0

Example Input: Sentence: 'a few people are getting to know one another in affection'. How many words contain the letter 'w' in the sentence.
Example Output:
2