68458
In December 1880 , the Aachen tramway network was opened , and in 1895 it was electrified .
 location: Aachen
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: Aachen 
Answer:
 location: Aachen