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Michael Simpson and Stacy Sloan, both cooks with Razor's Edge, a local catering service, refill food containers Friday, April 19, 2013, while tending to the self-service food line in the Mount Sequoyah dining hall at the Mount Sequoyah Retreat and Conference Center in Fayetteville.The retreat center received a $171,000 loan from the city in January 2012 to complete energy efficiency upgrades to multiple buildings, including a new Energy Star-rated roof on the more-than-50-year-old cafeteria.