A problem can be with pollution.Logical formLearned from4 sentences. Pollution can be visible.Logical formLearned from4 sentences. An (oil pollution emergency plan) can be shipboard.Logical formLearned from4 sentences. Pollution can be in developing countries.Logical formLearned from4 sentences. (Pollution levels) can be allowable.Logical formLearned from4 sentences. (Noise pollution) can be in a country.Logical formLearned from4 sentences. Pollution may undergo a manifestation.Logical formLearned from4 sentences. Pollution may be caused by (or grounding).Logical formLearned from4 sentences. (Water pollution) may become an issue.Logical formLearned from4 sentences. A (lake water) may undergo pollution.Logical formLearned from4 sentences. Pollution can be (health hazard).Logical formLearned from4 sentences. Pollution can be from air.Logical formLearned from4 sentences. (Air pollution sources) can be stationary.Logical formLearned from4 sentences. (Air pollution) can be an introduction of chemicals.Logical formLearned from4 sentences. Some main sources can be constituted-of-or-filled-with pollution.Logical formLearned from4 sentences.