; cordless drill construction.

Construction		Source		Result
	+	closed wood door	+	closed wood door with peephole
	+	closed metal door	+	closed metal door with peephole
			O	open safe
	.	empty metal door frame	+	closed bar door
	"	window	#	window with metal bars
	"	window without curtains	#	window with metal bars
	"	window	#	window with metal bars
	.	concrete	T	large metal support
	.	concrete	l	small metal support
	0	pit	LINE_OXOX	junk metal barrier
	LINE_OXOX	junk metal barrier	LINE_OXOX	junk metal wall
			LINE_OXOX	junk metal floor
			]	scrap metal bridge
			h	metal bench
			T	metal table
			g	hanging meathook
			U	arc furnace
		is:FLAT	&	radio tower
		is:FLAT	6	radio controls
			T	exercise machine
			5	mechanical ergometer
			L	gravity treadmill
	{	refrigerator	{	vehicle refrigerator
	{	vehicle refrigerator	{	vehicle freezer