sentence: A large red slack line is connected to two trees out in a park. sentence: A strong young man is shown on the other side of the tree pulling the line to ensure that is the tightest it can be around the trunk of the trees. sentence: Then two couples appear and the men are assisting females tight rope across the slack line. sentence: Next,the two men begin to take their turn and walk across it jokingly holding up bottles of wine. sentence: As the man in the green shirt attempts to walk, he falls off the line. sentence: When they are finished,the two couples sit in the grass enjoying a picnic.