30839
Between 2004 and 2005 a series of tests was carried out prior to the line being opened for commercial operations to obtain approval for the line to be regularly operated at up to 300 km/h .
 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