46773
By the 5th and 6th centuries B.C. iron ore was being mined by the Celts in the Northern Black Forest ( for example in Neuenbürg ) .
 location: Northern Black Forest; location: Neuenbürg
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: Northern Black Forest, Neuenbürg 
Answer:
 location: Northern Black Forest; location: Neuenbürg