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: The journalists interviewed the stars of the new movie. They were very persistent, so the interview lasted for a long time. Question: Who was persistent?
Example Output: ['stars', 'journalists']

Example Input: Sentence: As Andrea in the crop duster passed over Susan, she could see the landing gear. Question: Who could see the landing gear?
Example Output: ['Andrea', 'Susan']

Example Input: Sentence: Kirilov ceded the presidency to Shatov because he was more popular. Question: Who was more popular?
Example Output:
Shatov, Kirilov