I'm having problems with this script. Can anybody help me see what's wrong. It is succesfully creating the exit, but not destroying it:

	define object <Factory South Room Door>
		alias <large steel door>
		invisible
		alt <large door; door; steel door; doors; steel doors; large doors>
		look <You look through the windows in the door.  All you can see is another creepy hallway lit with the same eerie tubed light bulbs.>
		examine <There is nothing special about the door, except that it is built with a window.   All you can see on the other side is another creepy hallway lit with the same eerie tubed light 

bulbs.>
		prefix <a>
		suffix <with windows>
		article <it>
		gender <it>
		properties <>
		open {
			if not property <Factory South Room Door; opened> then {
				property <Factory South Room Door; opened>
				property <Factory South Room Door2; opened>
				msg <With some effort, you pull it open.>
				create exit south <Factory South Room; hallway 1>
			}
			else msg <You already opened it.>
		}
		close {
			if not property <Factory South Room Door; opened> then msg <It's already closed.>
			else {
				property <Factory South Room Door; not opened>
				property <Factory South Room Door2; not opened>
				destroy exit <Factory South Room; hallway 1>
				msg <You push on the door, and it slams shut.>
			}
		}
		container
	end define

Try:

destroy exit <Factory South Room; south>

Inconsistent I know...

got it. thanks!