"Premise"

After my last comment, I keyed in the answer I had derived into the box: "SOS". If one looks at the sentence structure that emerges from adding the punctuation into the question, the first letter of each bracketed sequence of letters is just that; it seemed to fit the question, too. The box gave out a loud beep as I put the last character into it; there was the sound of a tumbler moving within it, as the door of the box opened.


Or, should I say, the door of the safe. And within the safe was one thing: a single key. I removed the key, and looked around the room; I noted the keyhole on the door closest to the safe, and inserted the key. A single turn, and I heard the lock open. I opened the door and saw a room similar to the one I was in; another safe, another door. On the table was a slab of pork, with the steam rising from it; newly cooked, apparently. The smell instantly pulled me towards it; I was struck by a sudden thought, and turned back into the room I had left, and gathered up my few belongings, before entering the new room and closing the door behind me.


With that, I looked around the room; practically identical to the previous one, apart from the food and a bed. Ah, how good it is to see a proper bed...


I laid my few things upon it, before devouring the food with the ravenous hunger I find myself filled with. And with that done, I turned to the sheet of paper. This time, instead of a sheet of paper as blank as the walls, there were words written upon it in the same scrawl as the first note I had; the note I found upon arriving here.


I am whole. Remove one thing from me, and I am less; another, and another. And yet, no matter how much you remove from me, I remain what I am. What am I? - #002


So this is the second puzzle, is it? I think I can solve this on my own; there's no fancy codes or anything of that sort. But I think that I will sleep now, so that I can approach it free of the ills of tiredness. This bed is so... comfortable. Ah...