52853
The outermost electrons of Li and Be respectively belong to the 2 s " subshell , and those of Na and Mg to the 3 s " subshell .
 location: Li; location: Be; location: Na; location: Mg
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: Li, Be, Na, Mg 
Answer:
 location: Li; location: Be; location: Na; location: Mg