557
Similarly, a human immunodeficiency virus promoter , whose activity is controlled through chi B factors , was found to be active in the IL-2 producing EBV- B cells , but inactive in the non- IL-2 -producing cells .
 cell line: IL-2 producing EBV- B cells; cell line: non- IL-2 -producing cells; DNA: human immunodeficiency virus promoter; protein: IL-2; protein: IL-2; protein: chi B factors; cell type: B cells
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: IL-2 producing EBV- B cells, non- IL-2 -producing cells, human immunodeficiency virus promoter, IL-2, IL-2, chi B factors, B cells 
Answer:
 cell line: IL-2 producing EBV- B cells; cell line: non- IL-2 -producing cells; DNA: human immunodeficiency virus promoter; protein: IL-2; protein: IL-2; protein: chi B factors; cell type: B cells