Time-distance diagrams along cut 1 (see panel i of Fig. 3) show the simultaneous upward motions of the eruption and downward streams in different AIA bandpasses. The red dotted line in the top right panel is the parabolic fit to the moving features. The corresponding accelerations are also shown. The bottom panel is a time-distance diagram taken along cut 4 (see panel i) of Fig. 3), showing the downward motions of the apex plasma.