Complex sentence: There are four quarters in a game and at the end of every quarter they switch ends, the winner of the game is the person with the most goals or points kicked (a goal is worth 6 points and a point is worth 1 point).
Split into simpler sentences: There are four quarters in a game and at the end of every quarter teams switch ends. The winner of the game is the team with the most goals or points kicked (a goal is worth 6 points and a point is worth 1 point).