27264
In addition , exposure of the embryos to TCDD at as low as 10pM for 72h , which does not elicit morphological abnormalities of embryos , markedly increased GFP expression .
 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