344848
These speeds were made possible by its 25 kV AC railway electrification system in place of the traditional Italian system of 3 kV DC , and the new signaling , control and train protection system provided by the European Rail Traffic Management System / European Train Control System ( ETCS ) .
 None
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:  
Answer:
 None