/ trowel construction.

Construction		Source		Result
	0	shallow pit	#	improvised shelter
	.	empty door frame	+	closed makeshift door
	"	taped window	"	window
	"	taped window	"	window with curtains
	"	taped window	"	window
	"	taped window	"	window without curtains
		is:DIGGABLE	#	narrow fence posts
	#	narrow fence posts	LINE_OXOX	woven wattle fence
			#	half-built wattle-and-daub wall
	#	half-built wattle-and-daub wall	LINE_OXOX	wattle-and-daub wall
	LINE_OXOX	woven wattle fence	LINE_OXOX	wattle-and-daub wall
	&	broken wattle-and-daub wall	LINE_OXOX	wattle-and-daub wall
	0	pit	.	dirt
			#	field stone half-wall
			.	dirt floor
			#	desk
	0	shallow pit	T	wind mill
	.	grass	.	dirt
	,	long grass	.	dirt
	'	tall grass	.	dirt
	.	dead grass	.	dirt
	.	golf green	.	dirt
	.	white grass	.	dirt
	.	sand
	.	clay
	#	mound of clay
			U	charcoal kiln
			=	smoking rack
			U	rock forge
			^	butchering rack
	0	pit	LINE_OXOX	junk metal barrier
	4	pine tree	;	pine lean-to
		is:DIGGABLE, FLAT	0	shallow pit
			#	log stool
	,	gravel	.	dirt
	.	grass	.	dirt
	,	long grass	.	dirt
	'	tall grass	.	dirt
	.	dead grass	.	dirt
	.	golf green	.	dirt
	.	white grass	.	dirt
	0	shallow pit	LINE_OXOX	stick wall