45083
Beryllium oxide , BeO , is a white refractory solid , which has the wurtzite crystal structure and a thermal conductivity as high as some metals .
 location: BeO
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: BeO 
Answer:
 location: BeO