Task: In this task, you're given a sentence and question. Based on the information provided in a given sentence, you should identify the shortest continuous text span from the sentence that serves as an answer to the given question. Answer the question using coreference resolution. Coreference resolution is the task of clustering mentions in text that refer to the same underlying real world entities. For example let's take a sentence 'I voted for Obama because he was most aligned with my values, she said.' Here in this example 'I', 'my', and 'she' belong to the same cluster and 'Obama' and 'he' belong to the same cluster. Now let's discuss another example , original sentence: 'I voted for Trump because he was most aligned with my values',John said. Now here is the same sentence with resolved coreferences: 'John voted for Trump because Trump was most aligned with John's values',John said. 
Categories: Question Answering
Domains: Commonsense

Positive examples:
input: Sentence: Sam pulled up a chair to the piano, but it was broken, so he had to sing instead. Question: What was broken?
output: piano
explanation: The given sentence clearly states that Sam pulled up a chair to the piano, but piano was broken, so he had to sing instead. Therefore, the answer is piano. This is a positive example as the answer is correct and complete.; input: Sentence: Since it was raining, I carried the newspaper over the backpack to keep it dry. Question: What was I trying to keep dry?
output: backpack
explanation: The given sentence clearly states that Since it was raining, I carried the newspaper over the backpack to keep it dry. Therefore, the answer is backpack. This is a positive example as the answer is correct and complete.; input: Sentence: Since it was raining, I carried the newspaper in the backpack to keep it dry. Question: What was I trying to keep dry?
output: newspaper
explanation: The given sentence clearly states that Since it was raining, I carried the newspaper in the backpack to keep it dry. Therefore, the answer is newspaper. This is a positive example as the answer is correct and complete.; input: Sentence: Jane knocked on Susan's door, but there was no answer. She was disappointed. Question: Who was disappointed?
output: Jane
explanation: The given sentence clearly states that Jane knocked on Susan's door, but there was no answer. She was disappointed. Therefore, the answer is Jane. This is a positive example as the answer is correct and complete.

Negative examples:
input: Sentence: Everyone really loved the oatmeal cookies; only a few people liked the snickerdoodle cookies. Next time, we should make fewer of them. Question: Which cookie should we make fewer of, next time?
output: oatmeal
explanation: The given sentence clearly states that everyone really loved the oatmeal cookie; only a few people liked the snickerdoodle cookies and next time, we should make fewer of snickerdoodle cookies. Therefore, the answer is snickerdoodle cookies. This is a negative example as the answer oatmeal is incorrect and incomplete.; input: Sentence: I couldn't find a spoon, so I tried using a pen to stir my coffee. But that turned out to be a bad idea, because it got full of coffee. Question: What got full of coffee?
output: pencil
explanation: The given sentence clearly states that a pen is used to stir the coffee and this pen got full of coffee. Therefore, the answer is pen. This is a negative example as the answer pencil is incorrect and incomplete.; input: Sentence: James asked Robert for a favor but he was refused. Question: Who was refused?
output: Robert
explanation: The given sentence clearly states that James asked Robert for a favor but James was refused. Therefore, the answer is James. This is a negative example as the answer Robert is incorrect and incomplete.