12886
Our data provide evidence that the differential responses in gene expression and cell activation seen in primary NK and T cells on direct stimulation with different cytokines may be a direct result of distinct activation of STAT transcription factors .
 protein: cytokines; protein: STAT transcription factors; protein: transcription factors
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: cytokines, STAT transcription factors, transcription factors 
Answer:
 protein: cytokines; protein: STAT transcription factors; protein: transcription factors