TASK DEFINITION: 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.
PROBLEM: Sentence: Two years later , in August 1961 , he broke again the European record in Lodz . 
 Question: where did someone break something?

SOLUTION: in Lodz

PROBLEM: Sentence: The State Chancellory prepared a draft , which was discussed during five sessions of the Council of Ministers , where alterations were made to further strengthen the emperor 's prerogatives at the expense of the new parliament . 
 Question: what   strengthened something?

SOLUTION: alterations

PROBLEM: Sentence: Instead , much of numerical analysis is concerned with obtaining approximate solutions while maintaining reasonable bounds on errors . 
 Question: what is  concerned?

SOLUTION:
much of numerical analysis