5667
The addition of the third intron of TNF-alpha to this construct resulted in an enhancement of CAT protein .
 protein: TNF-alpha; protein: CAT protein; DNA: third intron
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-alpha, CAT protein, third intron 
Answer:
 protein: TNF-alpha; protein: CAT protein; DNA: third intron