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David Cameron mulls joining Obama in bombing Isis in Iraq http://t.co/Jg6yNauEDP
 person: David Cameron; person: Obama; organization: Isis; location: Iraq
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: David Cameron, Obama, Isis, Iraq 
Answer:
 person: David Cameron; person: Obama; organization: Isis; location: Iraq