13653
Structural analysis demonstrated that the mouse CPO gene spans approximately 11 kb and consists of seven exons , just like its human counterpart.
 DNA: seven exons; protein: CPO; DNA: mouse CPO 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: seven exons, CPO, mouse CPO gene 
Answer:
 DNA: seven exons; protein: CPO; DNA: mouse CPO gene