"I don't know what half those things are... Earth like the ground..?" He reads it over, wondering if he read it wrong but, no. Those are the words. He frowns. "D'you know what a marshmallow is? And why they're squishy?"

Is it a riddle? He's not sure, and sets it back down, because if that's the way out of here, he isn't getting out of here any time soon.