46894
Northbound Blue and Red line trains can be boarded from the east side of the eastern platform and the southbound Red Line trains can be boarded from the west side of the western platform .
 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