90159
However , some researchers do not discount the possibility that manti may have originated in the Middle East and spread eastward to China and Korea through the Silk Road .
 location: Middle East; location: China; location: Korea; location: Silk Road
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: Middle East, China, Korea, Silk Road 
Answer:
 location: Middle East; location: China; location: Korea; location: Silk Road