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

Example Input: Sentence: 'a man sitting holding a drink with pizzas on the table'. How many words contain the letter 'k' in the sentence.
Example Output: 1

Example Input: Sentence: 'an acoustic guitar is shown laying on a bed'. How many words contain the letter 'l' in the sentence.
Example Output: 1

Example Input: Sentence: 'a blue and white bus driving along the street'. How many words contain the letter 'c' in the sentence.
Example Output:
0