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The influential " AIMA " ( 2009 ) defines an agent as " anything that can be viewed as perceiving its environment through sensors and acting upon that environment through actuators " , and characterizes intelligence as the ability to succeed at acting in accordance with certain ideal standards for rationality .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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