Restrictions can be on (air pollution).Logical formLearned from4 sentences. Effects can be on (air pollution).Logical formLearned from4 sentences. An article can be about pollution.Logical formLearned from4 sentences. (Pollution limits) can be mandatory.Logical formLearned from4 sentences. The world may examine pollution.Logical formLearned from4 sentences. Pollution can be at a (harbor complex).Logical formLearned from4 sentences. Companies may pay for an increment of pollution.Logical formLearned from4 sentences. Costs can be for pollution.Logical formLearned from4 sentences. Bats may keep pollution to a minimum.Logical formLearned from4 sentences. A crop may be affected by genetic pollution.Logical formLearned from4 sentences. An (air pollution) may pertain-to a park.Logical formLearned from4 sentences. A threat can be from (air pollution).Logical formLearned from4 sentences. A percent may pertain-to a (mercury pollution).Logical formLearned from4 sentences. A blast may cause pollution.Logical formLearned from4 sentences. (Air pollution standards) may pertain-to a nation.Logical formLearned from4 sentences.