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Antioxidant-mediated inhibition of cytokine production was correlated with low levels of the corresponding messenger RNAs .
 protein: cytokine; RNA: messenger RNAs
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: cytokine, messenger RNAs 
Answer:
 protein: cytokine; RNA: messenger RNAs