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.

Sentence: While Ballard recuperates in the hospital , the released spirits , unharmed from the nuclear explosion , attack the city . 
 Question: what was  attacked?
the city

Sentence: Produced in Australia , it starred the current senior members of the `` Young Talent Team '' - Dannii Minogue , Vince Del Tito , Natalie Miller , Lorena Novoa , Beven Addinsall , and a new member , black teenager Keith Williams , who was imported from Los Angeles . 
 Question: who was  imported  from somewhere?
Keith Williams ### a new member

Sentence: The north tower was quickly rebuilt as a stubby , flat-roofed structure . 
 Question: what was something rebuilt  as?

a stubby , flat-roofed structure .