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

Example Input: Sentence: 'some people are sitting around a black table'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'an orange cat is lounging on a gray couch'. How many words contain the letter 'c' in the sentence.
Example Output: 2

Example Input: Sentence: 'a dining table with two open laptops sitting on top of it'. How many words contain the letter 'l' in the sentence.
Example Output:
2