80596
Tantalite has the same mineral structure as columbite ( Fe , Mn ) ( Ta , Nb ) O ; when there is more tantalum than niobium it is called tantalite and when there is more niobium than tantalum is it called columbite ( or niobite ) .
 location: O
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: O 
Answer:
 location: O