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Plutonium for nuclear weapons was produced for decades at the Hanford Site , which is now the most contaminated nuclear site in the US .
 location: Hanford Site; location: US
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: Hanford Site, US 
Answer:
 location: Hanford Site; location: US