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" Climate change poses a direct threat to the infrastructure of America . " — President Obama http://t.co/9mSDnbYtf3 #ActOnClimate
 location: America; person: President Obama
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: America; person: President Obama