Complex sentence: Afterward, Roslin and Lee decide not to reconstitute the Quorum of Twelve, since the Twelve Colonies no longer exist; instead, a new council was be derived with representatives from each vessel in the fleet ("No Exit").
Split into simpler sentences: Afterward, Roslin and Lee decided not to reconstitute the Quorum of Twelve, since the Twelve Colonies no longer existed. Instead, a new council was derived with representatives from each vessel in the fleet ("No Exit").