16369
Upon treatment of isolated hepatocytes with Hb alone or in the presence of TCDD , there was an increase in the AhR - dependent luciferase activity .
 Chemical: TCDD
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: TCDD