9918
Construction The line was constructed in three parts : The route of the line in the Saint Petersburg area is difficult to follow because various changes were made between 1894 and 1928 .
 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