Examples of RGZ(L) subjects with the optical and radio contour image seen by Zooniverse platform volunteers overplotted with the optical IDs selected by the volunteers, marked as green crosses. All sources have five or more optical ID selections (volunteers could optionally select more than one possible ID). The top row shows examples where a consensus was achieved and the correct optical ID selected, the bottom row ones where no consensus was found and no optical ID returned from RGZ(L).