TASK DEFINITION: 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.
PROBLEM: Sentence: Sam broke both his ankles and he's walking with crutches. But a month or so from now they should be unnecessary. Question: What should be unnecessary?

SOLUTION: ['ankles', 'crutches']

PROBLEM: Sentence: Sam Goodman's biography of the Spartan general Xenophanes conveys a vivid sense of the difficulties he faced in his childhood. Question: Who faced difficulties?

SOLUTION: ['Xenophanes', 'Sam']

PROBLEM: Sentence: Patting her back, the woman smiled at the girl. Question: Whose back was the woman patting?

SOLUTION:
["girl's", "woman's"]

