id	keyword
ap-5549	roof
ap-5549	building
ap-5549	models
ap-5549	edges
ap-5549	ridge
ap-5549	image
ap-5549	building models
ap-5549	height
ap-5549	data
ap-5549	outlines
ap-5549	hips
ap-5549	point
ap-5549	clouds
ap-5549	reconstruction