12005
This protein was named elf-2 because its DNA-binding domain is virtually identical to that of ets family member elf-1 .
 protein: ets family member; protein: DNA-binding domain; protein: elf-2; protein: elf-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: ets family member, DNA-binding domain, elf-2, elf-1 
Answer:
 protein: ets family member; protein: DNA-binding domain; protein: elf-2; protein: elf-1