199019
and has been used by Shanghai – Nanjing – Hefei – Wuhan express trains since then .
 location: Shanghai; location: Hefei; location: Wuhan
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: Shanghai, Hefei, Wuhan 
Answer:
 location: Shanghai; location: Hefei; location: Wuhan