91805
The structure of MgO has been calculated as a triangular shape with the O molecule binding side-on to the magnesium .
 location: MgO
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: MgO 
Answer:
 location: MgO