6721
Our data showed that TNF resistance in vitro correlates with the increased level of transcription factor NF-kappaB .
 protein: TNF; protein: NF-kappaB; protein: transcription factor
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: TNF, NF-kappaB, transcription factor 
Answer:
 protein: TNF; protein: NF-kappaB; protein: transcription factor