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

Example Input: Sentence: 'a large field is next to a river'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'a grown elephant with two baby elephants standing in tall grasses'. How many words contain the letter 'w' in the sentence.
Example Output: 3

Example Input: Sentence: 'racks of donuts and sweet rolls for sale in a bakery display case'. How many words contain the letter 'j' in the sentence.
Example Output:
0