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The UN special envoy for Afghanistan Franchesco Bendrel says the world body has received separate letters from the two sides , pledging to participate in the negotiations with serious intent and to not abandon the process unilaterally .
 geographical social political: Afghanistan; organization: UN; organization: the world body; organization: the two sides; person: The UN special envoy for Afghanistan; person: Franchesco Bendrel; location: world
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:
 geographical social political: Afghanistan; organization: UN; organization: the world body; organization: the two sides; person: The UN special envoy for Afghanistan; person: Franchesco Bendrel; location: world