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Incubation of each of the TRs with NE from COS-7 cells , which do not possess sufficient endogenous TRs to mediate T3-responses , resulted in formation of a new, more greatly shifted complex .
 cell line: COS-7 cells; protein: greatly shifted complex; protein: TRs; protein: TRs
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell line: COS-7 cells; protein: greatly shifted complex; protein: TRs; protein: TRs