Penalties can be for pollution.Logical formLearned from8 sentences. (Pollution controls) can be improved.Logical formLearned from8 sentences. Pollution may inflict on (coral reefs).Logical formLearned from8 sentences. Action can be against pollution.Logical formLearned from8 sentences. (Air pollution) can be high.Logical formLearned from8 sentences. Tribes may struggle with pollution.Logical formLearned from8 sentences. A decrease can be in (air pollution).Logical formLearned from8 sentences. A us-state can be with (air pollution requirements).Logical formLearned from8 sentences. (Air pollution requirements) may pertain-to a country.Logical formLearned from8 sentences. Unanimity can be on a goal of reducing (pollution levels).Logical formLearned from8 sentences. (Climate change) may be blamed on (air pollution).Logical formLearned from8 sentences. A world-city may warn on pollution.Logical formLearned from8 sentences. A pall can be constituted-of-or-filled-with pollution.Logical formLearned from8 sentences. Measures can be against pollution.Logical formLearned from8 sentences. Problems can be with pollution.Logical formLearned from8 sentences.