Top image: filament, indicated by a thin white (hand-drawn) line, approximately one hour before it erupted, as seen in STEREO-A EUVI filtergrams at 304 Å. The white line is placed immediately below the actual structure so that it does not cover it. As it appears the filament was a rather large structure, spanning from north equatorial latitudes to south polar latitudes, with a anticlockwise tilt with respect to the solar equatorial plane. A part of the filament possibly wrapped beyond the instrument’s field of view near the south pole. Middle image: STEREO-A EUVI filtergram at 304 Å showing both filaments that later on erupted one day apart, producing two distinct CMEs, the primary one indicated by a blue arrow and the earlier erupting one by a white arrow. Bottom image: SDO-AIA filtergrams at 131 Å with a magenta rectangle enclosing the location of the third eruption, a solar flare, that produced a CME which was visible in the STEREO-A COR2 white-light images indicated in Fig. 5 (yellow arrow).