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But others note that trucks were seen carrying the rods out of their normal storage area months ago , and it is unclear where they are _ or even whether the United States is sniffing for the krypton gas in the right place .
 the United States, others, their normal storage area, trucks, the right place
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 the United States, others, their normal storage area, trucks, the right place