Assertion: morocco's number | /r/CapableOf | conduct a practice demonstration
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text: On 9 October 1957, B-47 serial number 51-2177A, of the 447th Bomb Squadron, 321st Bomb Wing at Pinecastle Air Force Base suffered wing failure and crashed northwest of Orlando, Florida, and west of Winter Park, Florida, while conducting a practice demonstration for the annual Strategic Air Command Bombing Navigation and Reconnaissance Competition at Pinecastle AFB.