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If they cannot, chimeric proteins can be tested to identify which amino acids distinguish the different family members.
 protein: chimeric proteins
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: chimeric proteins 
Answer:
 protein: chimeric proteins