["Different ones" could refer to Earth or to multiple planets, and she pauses for a moment to process that. Her face is calm and unreadable, perhaps to an annoying degree. No one needs to be that blandly disinterested, but she's accomplishing it ... for now.]

Many claim to be from Earth, but our information doesn't match up. [Her world burned, and many others haven't. Or if they have, they were obliterated. It's very strange, and she lacks a knowledge of the multiverse.]

But not all are. There are humans from other planets. And aliens, too. I've never asked their place of origin. [Truthfully ... Lexa didn't care. It might be partly because of denial. Actually, that wouldn't be far from the truth.]