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In 1995 and 1996 , with the help of the United Nations Development and Planning Office and the Industrial Development Organization , China and North Korea successively held the " Tumen River region investment and trade negotiation conference " , and both made relatively good achievements .
 date: 1995 and 1996; organization: the United Nations Development and Planning Office; organization: the Industrial Development Organization; geographical social political: China; geographical social political: North Korea; location: Tumen River region
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 date: 1995 and 1996; organization: the United Nations Development and Planning Office; organization: the Industrial Development Organization; geographical social political: China; geographical social political: North Korea; location: Tumen River region