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.

Q: Sentence: Instead , much of numerical analysis is concerned with obtaining approximate solutions while maintaining reasonable bounds on errors . 
 Question: when might something obtain something?

A: while maintaining reasonable bounds on errors
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Q: Sentence: While Ballard recuperates in the hospital , the released spirits , unharmed from the nuclear explosion , attack the city . 
 Question: who   attacked something?

A: the released spirits
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Q: Sentence: 26.8 % of all households were made up of individuals and 13.2 % had someone living alone who was 65 years of age or older . 
 Question: what   had something?

A:
26.8 % of all households
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