oxygen oxygen is a new abrasion produced by parrot blue under proper absolute
oxygen is oxygen. duck_egg_blue is blue. air has oxygen_nitrogen_and_carbon_dioxide blue_crowned_chlorophonia is bird. dissolved_oxygen is natural_decomposition_product_of_h2o2. holly_blue is insect. bromothymol_blue is acid_base_indicator. inhaled_air is oxygen. oxygen is chalcogen. air has oxygen