4882
Pre - treatment with 400 pptr 2 , 3 , 7 , 8 - tetrachlorodibenzo - p - dioxin ( 2 , 3 , 7 , 8 - TCDD ) or 1 , 2 , 3 , 7 , 8 - pentachlorodibenzo - p - dioxin inhibited the EE2 induction of vtg1 , vtg2 and vtg3 by > 95 % ( p <= 0 . 05 ) .
 Chemical: 2 , 3 , 7 , 8 - tetrachlorodibenzo - p - dioxin; Chemical: 2 , 3 , 7 , 8 - TCDD; Chemical: 1 , 2 , 3 , 7 , 8 - pentachlorodibenzo - p - dioxin; Chemical: EE2
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: 2 , 3 , 7 , 8 - tetrachlorodibenzo - p - dioxin; Chemical: 2 , 3 , 7 , 8 - TCDD; Chemical: 1 , 2 , 3 , 7 , 8 - pentachlorodibenzo - p - dioxin; Chemical: EE2