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The term " " prison–industrial complex " " ( " PIC " ) , derived from the " military–industrial complex " of the 1950 s , describes the attribution of the rapid expansion of the US inmate population to the political influence of private prison companies and businesses that supply goods and services to government prison agencies for profit .
 location: US
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: US