7112
Decidual gammadelta T cells , which significantly increase in number during pregnancy, might play a role in recognition of fetal antigens and also in determining the quality of the response to these antigens .
 ( cell type: Decidual gammadelta T cells, None) , ( protein: antigens, None) , ( protein: fetal antigens, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell type: Decidual gammadelta T cells, None) , ( protein: antigens, None) , ( protein: fetal antigens, None) 