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

SOLUTION: much of numerical analysis

PROBLEM: Sentence: Originally the three women , Amy Saunders , Lou Bennett and Sally Dastey combined their vocal talents as backing singers for Aboriginal band Djaambi , led by Saunder 's brother Richard Frankland in 1990 . 
 Question: who were  backing something?

SOLUTION: singers for Aboriginal band Djaambi , led by Saunder 's brother Richard Frankland in 1990 .

PROBLEM: Sentence: Latif said he traveled from Yemen to Pakistan in August 2001 to seek medical treatment , while the U.S. government alleged he went there to receive military training from affiliates of al Qaeda . 
 Question: where did someone travel?

SOLUTION:
from Yemen to Pakistan ### to Pakistan