Question: Gregg A. Sturdevant is a retired United States Marine Corps major general, from February 2012 to February 2013, he commanded the Marines' aviation wing at which 1,600 acre Afghan Armed Forces base in Helmand Province, Afghanistan?
{'answer': 'Camp Leatherneck', 'supporting_facts': [['Gregg A. Sturdevant', 2], ['Camp Leatherneck', 0]]}