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The murine fra-1 gene , encoding Fos-related Ag 1 , was isolated from a splenic cDNA library and sequenced.
 protein: Fos-related Ag 1; DNA: splenic cDNA library; DNA: murine fra-1 gene
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: Fos-related Ag 1, splenic cDNA library, murine fra-1 gene 
Answer:
 protein: Fos-related Ag 1; DNA: splenic cDNA library; DNA: murine fra-1 gene