1271
In the 3rd century BCE , the Qin reunited core China and established the first Chinese empire .
 location: Qin; location: China; location: Chinese empire
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: Qin, China, Chinese empire 
Answer:
 location: Qin; location: China; location: Chinese empire