Random triples
| Subject | Object |
|---|---|
| gptkb:NOx_Budget_Trading_Program | nitrogen oxides |
| gptkb:United_States_Acid_Rain_Program | nitrogen oxides |
| gptkb:Diesel_Risk_Reduction_Plan | diesel particulate matter |
| gptkb:Diesel_Risk_Reduction_Plan | toxic air contaminants |
| gptkb:United_States_Acid_Rain_Program | sulfur dioxide |