--What's a Matrix? [he's blinking a little curiously.] And don't you mean a Prime? There's like... four I can think of off the top of my processor. Well. Three, since Longarm Prime turned out to be a Decepticon double agent.

[at his next question Bumblebee has to laugh.]

What? No. He's super alive and super awful. He was my drill sergeant at the Academy. He's now one of the leaders of the Elite Guard. And a Prime.