An outdoor (air pollution) can be urban.Logical formLearned from4 sentences. Some waterways may face a (pollution crisis).Logical formLearned from4 sentences. (Pollution claims) may undergo a settlement.Logical formLearned from4 sentences. Smokes may cause (air pollution).Logical formLearned from4 sentences. A fog may be blamed on (air pollution).Logical formLearned from4 sentences. A country may send a country a (pollution monitoring plane).Logical formLearned from4 sentences. Pollution can be on shores.Logical formLearned from4 sentences. An origin may pertain-to pollution.Logical formLearned from4 sentences. A (shipwreck disaster) of a month may cause (oil pollution).Logical formLearned from4 sentences. A result may pertain-to an (air pollution).Logical formLearned from4 sentences. Pollution can be costly.Logical formLearned from4 sentences. Pollution may damage an ecosystem.Logical formLearned from4 sentences. Pollution may devastate some chinese cities.Logical formLearned from4 sentences. Goals can be constituted-of-or-filled-with (pollution control).Logical formLearned from4 sentences. Pollution may dissipate.Logical formLearned from4 sentences.