XR and XL in “Unfinished Business”

So, how are ya?

Great. Other than the time I spent rotting away in prison!

Do you know what consumed my thoughts while I was locked up?!

Wrong! [slams XR to the ground] I thought and I thought and I thought about why they deactivated me, but made you a Ranger! [points at XR]

Me? That's a puzzlement. You know, that one keeps me up nights.

I studied your schematics. There is one part that makes you different, makes you better: your omega-class AFD!

AFD? I don't even know what that is.

I don't know what it is, either. But, it is the only thing they gave you that they didn't give me!