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.
One example is below.
Q: Sentence: The album is named after the discredited pseudoscience of phrenology , the study of head shapes to determine intelligence and character , which was used to rationalize racism during the 19th century in the United States . 
 Question: what is  named  after something?
A: The album
Rationale: The output answers the question given as it is the album that is named after the discredited pseudoscience of phrenology. It is a continuous text span from the sentence and it does not use outside knowledge. Here the album is the answer that answers the what part of the question.
Q: Sentence: Instead , much of numerical analysis is concerned with obtaining approximate solutions while maintaining reasonable bounds on errors . 
 Question: what might  obtain something?
A:
much of numerical analysis