Verbs the parser knows: LOOK, EXAMINE, TAKE, USE, OPEN, CLOSE, GO, and USE … WITH / PUT … IN. Objects are named as the original data names them (ROOM, FLOOR, NORTH, WOLF PAINTING, and so on). Saving was never implemented in the original, and it still is not. The walkthrough, the original DOS files and the source of this re-creation are on the game's page.