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In contrast, POS-1 was not found in nuclear extracts of human Th1 clones .
 cell line: human Th1 clones; protein: POS-1
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: human Th1 clones, POS-1 
Answer:
 cell line: human Th1 clones; protein: POS-1