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

Example Input: Sentence: 'a horse that has a car behind it in the street'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'an old motorcycle with the seat missing parked in a garage with other parts and motorcycles'. How many words contain the letter 'r' in the sentence.
Example Output: 6

Example Input: Sentence: 'two photos each with pizzas one ham and cheese one supreme'. How many words contain the letter 'k' in the sentence.
Example Output:
0