TASK DEFINITION: In this task, you are given a sentence from the research paper and the category to which it belongs. Your task is to classify whether the given category is correct or not by providing "True" and "False", respectively. Here are the definitions for the categories: Background (Why is this problem important? What relevant works have been created before? What is still missing in the previous works? What are the high-level research questions? How might this help other research or researchers?), Purpose (What specific things do the researchers want to do? What specific knowledge do the researchers want to gain? What specific hypothesis do the researchers want to test?), Method (How did the researchers do the work or find what they sought? What are the procedures and steps of the research?), or Finding (What did the researchers find out? Did the proposed methods work? Did the thing behave as the researchers expected?). ",
PROBLEM: Sentence: The resistance of immunized mice to challenge with the same or a different strain of mouse hepatitis virus ( MHV ) was examined as a model of challenge immunity to coronavirus infection. 
 Section: method

SOLUTION: False

PROBLEM: Sentence: PCR amplification of integrons , restriction fragment length polymorphism ( RFLP ) and DNA sequencing of cassette regions were performed. 
 Section: method

SOLUTION: True

PROBLEM: Sentence: This article considers the effect of increasing diversity in the species hunted on the probability of global epidemics such as SARS. 
 Section: purpose

SOLUTION:
True