In this task, you are given a sentence from the research paper and your task is to classify the given sentence into the following 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?). 

Input: Consider Input: Conclusion : IFN-γ +874 A allele was shown to be a risk factor in SARS susceptibility.

Output: finding


Input: Consider Input: R 0 , of 2019-nCoV in the early phase of the outbreak.

Output: background


Input: Consider Input: For this study , we determined the genome sequences of BYD1 and the S1 gene sequences of other five mammalian reovirus isolates ( BLD , JP , and BYL were isolated from different SARS patients during the outbreak , 302I and 302II were isolated from fecal specimens of two children of Beijing in 1982 ) to allow molecular comparison with other previously reported mammalian reoviruses ( MRVs ).


Output: purpose