17425
Computational docking analysis was conducted to model the interaction of these antagonists with the human ER alpha and showed that they could tightly bind to the ER alpha in a manner similar to that of ICI - 182 , 780 , a pure ER antagonist .
 Chemical: ICI - 182 , 780
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: ICI - 182 , 780