(Pollution claims) can be long-term.Logical formLearned from14 sentences. Pollution can be from oil.Logical formLearned from13 sentences. Energy may produce pollution.Logical formLearned from13 sentences. Pollution may cause a decline.Logical formLearned from13 sentences. A (water pollution) may pertain-to a river.Logical formLearned from13 sentences. Pollution may pertain-to a lake.Logical formLearned from13 sentences. Factories can be with (pollution problems).Logical formLearned from13 sentences. Contributors can be to (air pollution).Logical formLearned from13 sentences. Incidents can be constituted-of-or-filled-with pollution.Logical formLearned from13 sentences. Pollution can be from engines.Logical formLearned from13 sentences. Ground may undergo pollution.Logical formLearned from13 sentences. A world-city may suffer from (air pollution).Logical formLearned from13 sentences. Relation can be to (air pollution).Logical formLearned from13 sentences. Activities may cause pollution.Logical formLearned from13 sentences. Technology may reduce pollution.Logical formLearned from13 sentences.