3172
In patients with breast cancer , NK cell activity was significantly higher compared with patients with benign tumors (P = 0.006) or healthy control subjects (P = 0.002).
 cell type: NK cell; cell type: benign tumors
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: NK cell, benign tumors 
Answer:
 cell type: NK cell; cell type: benign tumors