sentence: We see men on a stage walking on a slack line as two other men film the event. sentence:  They switch and a different man then walks the slackline who flips off the slackline. sentence:  The men switch again and the first man is on the slackline. sentence:  The man fall off the slackline onto his butt. sentence:  The second man bounces and flips off. sentence:  The first man bounces and flips off. sentence:  the men clap and take the slackline off stage.