6857
Wild-type (wt) cells were inducible either by the tryptophan photoproduct 6-formylindolo[3,2-b]carbazole ( FICZ ) or by UV -irradiation but very low or undetectable levels were observed in the c12 cells .
 cell line: Wild-type (wt) cells; cell type: c12 cells
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: Wild-type (wt) cells, c12 cells 
Answer:
 cell line: Wild-type (wt) cells; cell type: c12 cells