sentences: the space 's opposite is made of 1 to gold ecosystems neon / land cutting by want
docs: gas_giant is astronomical_object. all_matter is inside_outer_space. cover_providing_terrain is unnatural_thing. space_exploration is unnatural_thing. irrigated_land is unnatural_thing. universe is natural_object. gold_ion is variable_charge_cation. exotic_matter has negative_energy space is amorphous_shape. astronomical_object is natural_inanimate_thing.