8363
Ligation of CD16 on IL-2- preactivated NK cells resulted in reduction of intracellular peroxide level as well as induction of FasL expression .
 protein: CD16; cell type: preactivated NK cells; cell type: IL-2- preactivated NK cells; protein: FasL
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: CD16, preactivated NK cells, IL-2- preactivated NK cells, FasL 
Answer:
 protein: CD16; cell type: preactivated NK cells; cell type: IL-2- preactivated NK cells; protein: FasL