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White House says Obama called Malaysian prime minister , Ukrainian president about downed jet from Air Force One . #MH17
 location: White House; person: Obama
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: White House, Obama 
Answer:
 location: White House; person: Obama