5316
Cotreatment of cells with chemical antioxidants or the enzyme catalase blocked the TCDD - mediated acceleration of keratinocyte cornified envelope formation , an endpoint of terminal differentiation .
 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