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The ARGUS-IS , or the Autonomous Real-Time Ground Ubiquitous Surveillance Imaging System , is a Defense Advanced Research Projects Agency ( DARPA ) project contracted to BAE Systems .
 Defense Advanced Research Projects Agency, BAE Systems
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Defense Advanced Research Projects Agency, BAE Systems