12389
Our and the previously published lines differ in the deletion that was engineered and by the fact that we removed the neomycin-resistance promoter and structural gene via the cre-loxP recombination system .
 DNA: structural gene; DNA: neomycin-resistance promoter
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: structural gene, neomycin-resistance promoter 
Answer:
 DNA: structural gene; DNA: neomycin-resistance promoter