File Name: interval_logic_events_pruning_1.htm Expected Behavior: at t=5 video1 starts from the beginning. at t=7 video1 disappears. at t=10 smile appears. at t=10 video2 starts from the beginning. at t=11 smile disappears. at t=12 video2 disappears. at t=13 smile appears. at t=13 video1 starts from the beginning again. at t=13 video2 starts from the beginning again. at t=15 video1 disappears. at t=15 video2 disappears. at t=19 smile disappears.