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Therefore , we tested what effects activated NK cells mediated on DC maturation ( Fig . 4 ) .
 Anatomy: NK cells; Anatomy: DC
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: NK cells, DC 
Answer:
 Anatomy: NK cells; Anatomy: DC