instruction:
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.
question:
The janitor cleaned the office of the counselor because it is his job .
answer:
The, janitor, his


question:
The lawyer told the auditor to provide documentation because he needed to present proof in court .
answer:
The, lawyer, he


question:
The guard accused the receptionist of theft because she looked guilty .
answer:

the, receptionist, she