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 construction worker gave the tax return to the accountant because she was the only qualified professional to handle the job .
Example Output: the, accountant, she

Example Input: The farmer demanded the auditor leave the farm because she was trespassing .
Example Output: the, auditor, she

Example Input: The supervisor berated the accountant for failure to adhere to her protocol .
Example Output:
the, accountant, her