sulfide is the most scarce gasses in dioxide
sulfur_dioxide is gas. sulfur_dioxide is not dioxide. sulfur_dioxide is inorganic_substance. carbon_dioxide is not gas. sulfur_dioxide is dioxide. sulfur_dioxide is pollutant. sulfur_dioxide is not inorganic_substance. hydrogen_sulfide is not gas. sulfur_dioxide is not gas. sulfur_dioxide is not pollutant.