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Gary C. Schroen is a former Central Intelligence Agency field officer who was in charge of the initial CIA incursion into Afghanistan in September 2001 to topple the Taliban regime and to destroy Al Qaeda .
 Gary, Schroen, Central Intelligence Agency, Afghanistan, Taliban, Al Qaeda
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gary, Schroen, Central Intelligence Agency, Afghanistan, Taliban, Al Qaeda