You are captured by cultists, and imprisoned in a dungeon. You manage to escape from your cell, and find 4 doors. You know that only one of them is safe and will lead you out of the dungeon, and the other 3 are trapped. Each door has a statement carved into it, and you know that 2 of the statements are true, and 2 of them are false. Which door will get you out of the dungeon safely?