Urban (air pollution) can be noticeable for a time.Logical formLearned from4 sentences. A (mercury pollution) may pertain-to a nation.Logical formLearned from4 sentences. Programs may cap pollution.Logical formLearned from4 sentences. (Government officials) may call (pollution reductions).Logical formLearned from4 sentences. Pollution may contribute.Logical formLearned from4 sentences. Pollution may be caused by runoff.Logical formLearned from4 sentences. Regions can be with (air pollution).Logical formLearned from4 sentences. Pollution can be a memory.Logical formLearned from4 sentences. Pollution can be under a factory.Logical formLearned from4 sentences. A main source of (fish contamination) can be pollution.Logical formLearned from4 sentences. A move may lead to pollution.Logical formLearned from4 sentences. Aerosols may be loosed by pollution.Logical formLearned from4 sentences. A flood of aerosols may suppress rainfall of a (pollution source).Logical formLearned from4 sentences. Rainfall may pertain-to a (pollution source).Logical formLearned from4 sentences. (Pollution violations) may map.Logical formLearned from4 sentences.