13
Negotiation content include not only barter trade , but have also added items such as cash trading , economic and technological co - operation and capital and technology introduction , etc .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 None