TASK DEFINITION: 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.
PROBLEM: The developer visited the hairdresser because she opened a new salon .

SOLUTION: the, hairdresser, she

PROBLEM: The analyst informed the baker the store is worthless because she made bad bread .

SOLUTION: the, baker, she

PROBLEM: The cleaner hates the developer because she spent a lot of time cleaning the room .

SOLUTION:
The, cleaner, she