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.
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Question: Sentence: The distinction between Primary and Secondary groups serves to identify between two orders of social organisation through analysis of the group relationships and their nature . 
 Question: how does something identify something?

Answer: through analysis of the group relationships and their nature


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

Answer: much of numerical analysis


Question: Sentence: In England , at the time of the Domesday Survey , this would have comprised between about 1 and 5 acres . 
 Question: what would  have comprised something?

Answer:
this