Question: The 47th Mr. Olympia competition was run by a Convention Center owned and operated by who?
Sentence (from "2011 Ms. Olympia"): The 2011 Ms. Olympia contest was an IFBB professional bodybuilding competition and part of Joe Weider's Olympia Fitness & Performance Weekend 2011 was held on September 16, 2011, at the South Hall in the Las Vegas Convention Center in Winchester, Nevada and in the Orleans Arena at The Orleans Hotel and Casino in Paradise, Nevada.
Relevant evidence: No