Some percent can be constituted-of-or-filled-with (pollution output).Logical formLearned from4 sentences. A fuel may reduce (gasoline pollution).Logical formLearned from4 sentences. Pollution may pertain-to a car.Logical formLearned from4 sentences. (Pollution levels) may plummet.Logical formLearned from4 sentences. An expert can be on indoor (air pollution).Logical formLearned from4 sentences. Persons may monitor pollution.Logical formLearned from4 sentences. (Pollution problems) can be in an area.Logical formLearned from4 sentences. (Pollution cuts) can be voluntary.Logical formLearned from4 sentences. A heart may pertain-to (water pollution control programs).Logical formLearned from4 sentences. (Water pollution control programs) may pertain-to a nation.Logical formLearned from4 sentences. Levels of arsenic may demonstrate pollution.Logical formLearned from4 sentences. (Pollution events) may affect an enjoyment of some (beach segments).Logical formLearned from4 sentences. Areas may be affected by pollution.Logical formLearned from4 sentences. An (ozone pollution) may improve.Logical formLearned from4 sentences. Cases can be constituted-of-or-filled-with industrial pollution.Logical formLearned from4 sentences.