In this task, you will be given a sentence, and you need to identify the set of coreference words. Coreferences are generally a set of words in the text that refer to the same person or thing. Your output set of coreference words must be strictly present in the given input sentence. Do not use any outside knowledge to create the set of coreference words. If there is a 'the' article before the person or thing you should include 'the' as well. Please separate the coreference words by commas in the output.

Example Input: The salesperson told the baker to stop selling bread because he found mold in the kitchen .
Example Output: The, salesperson, he

Example Input: The mechanic fixed the housekeeper "'s" car and then she wrote a thankful note .
Example Output: the, housekeeper, she

Example Input: The farmer offered apples to the housekeeper  because he had too many of them .
Example Output:
The, farmer, he