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President Obama 's address on #M17 has been delayed . Stay with us for updates : http://t.co/6qU9CudaO6
 person: President 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: President Obama 
Answer:
 person: President Obama