5807
The method of exhaustion was later discovered independently in China by Liu Hui in the 3rd century AD , in order to find the area of a circle .
 location: China; person: Liu Hui
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: China, Liu Hui 
Answer:
 location: China; person: Liu Hui