Assertion: skateboarder | /r/CapableOf | describe in the 2010 video clip
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Source sentences:
text: In the 2010 video clip, the skateboarder describes a fakie beta flip as, "a fakie backside 360 while you do an alpha flip"; thus, a beta flip can be described as a backside 360 with a 360-degree rotation of the board around the front foot.