11397
We have compared the action on U-937 human promonocytic leukemia cells of two DNA topoisomerase II inhibitors , namely the epipodophyllotoxin etoposide and the bisdioxopiperazine ICRF-193 .
 cell line: U-937 human promonocytic leukemia cells; protein: DNA topoisomerase II
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: U-937 human promonocytic leukemia cells, DNA topoisomerase II 
Answer:
 cell line: U-937 human promonocytic leukemia cells; protein: DNA topoisomerase II