In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.

Example Input: Sentence: Then , built by the LNWR , the branch line to Ashbourne was opened in 1899 . 
 Question: what was  opened?
Example Output: the branch line to Ashbourne

Example Input: Sentence: While Ballard recuperates in the hospital , the released spirits , unharmed from the nuclear explosion , attack the city . 
 Question: when were someone released?
Example Output: While Ballard recuperates in the hospital

Example Input: Sentence: The third is the presence of a community ; small and stable populations with a thick social network and social norms promoting conservation do better . 
 Question: what does something promote?
Example Output:
conservation