12805
We have found that the beta-casein gene is expressed in a cytotoxic T cell line , CTLL-2 , in response to interleukin-2 ( IL-2 ), which activates STAT5 .
 cell line: CTLL-2; protein: IL-2; DNA: beta-casein gene; protein: interleukin-2; cell line: cytotoxic T cell line; protein: beta-casein; protein: STAT5
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: CTLL-2, IL-2, beta-casein gene, interleukin-2, cytotoxic T cell line, beta-casein, STAT5 
Answer:
 cell line: CTLL-2; protein: IL-2; DNA: beta-casein gene; protein: interleukin-2; cell line: cytotoxic T cell line; protein: beta-casein; protein: STAT5