25828
The careful exploration of the energy landscape by molecular mechanics / molecular dynamics ( MM / MD ) simulations has allowed us to identify three distinct self - assembled structures of similar stabilities .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None