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This led the group to perform numerous attacks against the PLO , which had made clear it accepted a negotiated solution to the conflict .
 organization: PLO
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: PLO 
Answer:
 organization: PLO