land is a mean of artificial insulation
artificial_turf is not finite_surface_region. building is artificial_structure. artificial_turf is inert_artifact. irrigated_land is field. artificial_turf is finite_surface_region. building is not artificial_structure. irrigated_land is unnatural_thing. artificial_turf is physical_surface. artificial_turf is not inert_artifact. irrigated_land is not unnatural_thing.