76781
The hexacoordinate ionic radius of silicon may be considered to be 40 " pm , although this must be taken as a purely notional figure given the lack of a simple Si cation in reality .
 location: Si
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: Si 
Answer:
 location: Si