Complex sentence: Tina, Gene, and Louise go home and decide to eat the candy obtained by Bob and Linda, who went trick-or-treating in the dragon costume, with Tina announcing that she will continue to trick-or-treat after all.
Split into simpler sentences: Tina, Gene, and Louise go home and decide to eat the candy obtained by Bob and Linda, who went trick-or-treating in the dragon costume. Tina says that she will continue to trick-or-treat after all.