12101
The caprine arthritis-encephalitis virus ( CAEV ) long terminal repeat ( LTR ) is activated by gamma interferon ( IFN-gamma ) in promonocytic cells .
 DNA: caprine arthritis-encephalitis virus ( CAEV ) long terminal repeat; protein: gamma interferon; protein: IFN-gamma; cell type: promonocytic cells; DNA: LTR
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: caprine arthritis-encephalitis virus ( CAEV ) long terminal repeat, gamma interferon, IFN-gamma, promonocytic cells, LTR 
Answer:
 DNA: caprine arthritis-encephalitis virus ( CAEV ) long terminal repeat; protein: gamma interferon; protein: IFN-gamma; cell type: promonocytic cells; DNA: LTR