(Water pollution treatment tasks) may be fulfilled.Logical formLearned from3 sentences. (Water pollution treatment tasks) can be in areas.Logical formLearned from3 sentences. A tributary may undergo pollution.Logical formLearned from3 sentences. Pollution may be caused by (coal burning).Logical formLearned from3 sentences. Category can be for pollution.Logical formLearned from3 sentences. A survey may be conducted in a wake of pollution.Logical formLearned from3 sentences. A (video conference) can be on (soil pollution).Logical formLearned from3 sentences. An industrialization may result in pollution.Logical formLearned from3 sentences. Residents can be aware of importance of (pollution control).Logical formLearned from3 sentences. Indoor (air pollution) can be (risk factor).Logical formLearned from3 sentences. Some percent of accidents may involve (air pollution).Logical formLearned from3 sentences. Some disputes can be over environmental pollution.Logical formLearned from3 sentences. (Pollution control) can be high on an agenda.Logical formLearned from3 sentences. A (pollution spill) can be in a river.Logical formLearned from3 sentences. A (pollution accident) may pertain-to a river.Logical formLearned from3 sentences.