(Pollution rights) may undergo a trading.Logical formLearned from3 sentences. A global environment may undergo pollution.Logical formLearned from3 sentences. Sources may contribute to (air pollution).Logical formLearned from3 sentences. (Pollution problems) can be in an area.Logical formLearned from3 sentences. Pollution can be from shores.Logical formLearned from3 sentences. Pollution may manifest seriousness.Logical formLearned from3 sentences. (Water pollution) may be caused by farming.Logical formLearned from3 sentences. (Pollution accidents) can be large-scale.Logical formLearned from3 sentences. Countermeasures can be against pollution.Logical formLearned from3 sentences. Pollution may cease.Logical formLearned from3 sentences. (Pollution sources) can be in a region.Logical formLearned from3 sentences. Pollution can be in a bay.Logical formLearned from3 sentences. A volume can be constituted-of-or-filled-with pollution.Logical formLearned from3 sentences. An (air pollution) can be allowable.Logical formLearned from3 sentences. Research can be on effects of pollution.Logical formLearned from3 sentences.