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

Example Input: Sentence: 'a bed has an empty bag and folded laundry stacked on it'. How many words contain the letter 'm' in the sentence.
Example Output: 1

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 boy in a car on a laptop'. How many words contain the letter 'j' in the sentence.
Example Output:
0