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.

[EX Q]: Sentence: The `` power cepstrum '' was defined in a 1963 paper by Bogert et al. . 
 Question: what was  defined?
[EX A]: power cepstrum

[EX Q]: Sentence: It transforms back into Alan just in time for Pete to arrive and see Ed open the airlock . 
 Question: what does someone open?
[EX A]: the airlock

[EX Q]: Sentence: In one instance , Japanese police in the village of Jeam-ri , Hwaseong herded everyone into a church , locked it , and burned it to the ground . 
 Question: where was someone herded  into?
[EX A]:
a church

