(Pollution concerns) can be an issue.Logical formLearned from6 sentences. A male may notice pollution.Logical formLearned from6 sentences. A part can be in curbing pollution.Logical formLearned from6 sentences. A series can be constituted-of-or-filled-with (pollution controls).Logical formLearned from6 sentences. (Pollution controls) may pertain-to a world-city.Logical formLearned from6 sentences. Families may flee pollution.Logical formLearned from6 sentences. Reductions can be in pollution.Logical formLearned from6 sentences. Pollution may be discovered.Logical formLearned from6 sentences. Statistics can be on sources of pollution.Logical formLearned from6 sentences. Compensation can be for (noise pollution).Logical formLearned from6 sentences. Pollution may be felt across a sea.Logical formLearned from6 sentences. A country may tackle pollution.Logical formLearned from6 sentences. A talk may turn to pollution.Logical formLearned from6 sentences. Pollution may eat at (mountain ranges).Logical formLearned from6 sentences. (Pollution control authorities) may warn that something-is-the-case.Logical formLearned from6 sentences.