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?). ",

Sentence: Hospitalized patients showed signs of worsening in the second week after illness onset. 
 Section: finding
True

Sentence: A retrospective , epidemiological cluster analysis was conducted to investigate increases in MERS-CoV transmission and reports of household and nosocomial clusters. 
 Section: background
False

Sentence: We found that ~ 15 % of between-individual heterogeneity in disease 22 transmission was explained by a significant interaction between genetic and sex-specific 23 variation. 
 Section: purpose

False