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: Instead , much of numerical analysis is concerned with obtaining approximate solutions while maintaining reasonable bounds on errors . 
 Question: what might  maintain something?
[EX A]: much of numerical analysis

[EX Q]: Sentence: Pitt spoke out against the Convention of El Pardo which aimed to settle the dispute peacefully . 
 Question: what   aimed  to do something?
[EX A]: the Convention of El Pardo

[EX Q]: Sentence: Since there was nothing objectionable in it , most likely it was somehow lost by Bentley 's printer when the `` Etymology '' and `` Extracts '' were moved . 
 Question: how might something have been lost?
[EX A]:
somehow