Law & Order: SVU - how does this episode end?

It was on USA network today at 2:00 (central time). It's the episode where a teenage bully named Emily Sullivan is murdered, and her 3 friends (Paige, Brittany, & Andrea) are responsible, Brittany being the ringleader. I missed the last 10 minutes of it, the last part I saw was when Brittany was testifying against Paige & Andrea. How does it end? What sentences did the girls receive for killing their friend?