Simple submergence scenario for phase 2 cancellation with distributed sources (rather than point sources) of flux: (a) Magnetic field topology during phase 1a with submergence of the field below the separator; (b) Topology if reconnection ceases before submergence has been completed; (c) Magnetic topology if cancellation stops after large-scale submergence has finished; (d) Reconnection continuing when large-scale submergence has finished; (e) Close-up of the reconnection in the current sheet of (d), showing the production of a jet and small-scale submergence inside the current sheet; (f) Submergence during phase 1b.