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The National Maglev Initiative ( NMI ) was a research program undertaken in the early 1990s by the United States Department of Transportation , U.S. Army Corps of Engineers , Department of Energy , and other agencies which studied magnetically levitated , or " maglev " , train technology , operating at speeds around .
 organization: United States Department of Transportation; organization: U.S. Army Corps of Engineers; organization: Department of Energy
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: United States Department of Transportation, U.S. Army Corps of Engineers, Department of Energy 
Answer:
 organization: United States Department of Transportation; organization: U.S. Army Corps of Engineers; organization: Department of Energy