998
The DNA-binding properties of two heat shock factors , HSF1 and HSF3 , are induced in the avian erythroblast cell line HD6 .
 protein: two heat shock factors; cell line: HD6; protein: HSF3; cell line: avian erythroblast cell line; protein: HSF1
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: two heat shock factors; cell line: HD6; protein: HSF3; cell line: avian erythroblast cell line; protein: HSF1