You are given a sentence and a question, construct 2 answer options in a specific format i.e. ['option1','option2']. The answer options have to be text spans from the given sentence. Only one among the options should be the correct answer to the given question. Note that, the correct answer to the given question will require understanding of coreference resolution. Coreference resolution is the task of clustering mentions in text that refer to the same underlying real world entities.

Example Input: Sentence: James asked Robert for a favor but he was refused. Question: Who was refused?
Example Output: ['Robert', 'James']

Example Input: Sentence: Joe paid the detective after he delivered the final report on the case. Question: Who delivered the final report?
Example Output: ['Joe', ' detective']

Example Input: Sentence: Elizabeth moved her company from Sparta to Troy to save money on taxes; the taxes are much lower there. Question: Where are the taxes lower?
Example Output:
Sparta, Troy