(Air pollution) may reduce precipitation.Logical formLearned from5 sentences. Pollution may drop by some percent.Logical formLearned from5 sentences. A (groundwater pollution problem) may turn a community.Logical formLearned from5 sentences. A focus can be on (air pollution).Logical formLearned from5 sentences. Exposure can be to (particle pollution).Logical formLearned from5 sentences. Part may pertain-to a (pollution problem).Logical formLearned from5 sentences. Pollution may be caused by (vehicle emissions).Logical formLearned from5 sentences. Some forms can be constituted-of-or-filled-with (water pollution).Logical formLearned from5 sentences. Pollution can be from coal-burning plants.Logical formLearned from5 sentences. A result can be constituted-of-or-filled-with atmospheric pollution.Logical formLearned from5 sentences. (Air pollution sources) can be indoor.Logical formLearned from5 sentences. (Pollution control technology) may undergo a use.Logical formLearned from5 sentences. A (pollution situation) can be in areas.Logical formLearned from5 sentences. A battle can be against light pollution.Logical formLearned from5 sentences. Persons may get pollution.Logical formLearned from5 sentences.