8437
Daidzein and genistein glucuronides ( DG and GG ), major isoflavone metabolites , may be partly responsible for biological effects of isoflavones , such as estrogen receptor binding and natural killer cell (NK) activation or inhibition .
 cell type: natural killer cell
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: natural killer cell 
Answer:
 cell type: natural killer cell