An age can be constituted-of-or-filled-with pollution.Logical formLearned from7 sentences. (Pollution requirements) can be stringent.Logical formLearned from7 sentences. (Pollution sources) can be known.Logical formLearned from7 sentences. A center may pertain-to pollution.Logical formLearned from7 sentences. Ones can be at a center of pollution.Logical formLearned from7 sentences. Use can be in (pollution control devices).Logical formLearned from7 sentences. Pollution may qualify as a (health issue).Logical formLearned from7 sentences. (Pollution limits) can be on soot.Logical formLearned from7 sentences. (Water pollution) may undergo a regulation.Logical formLearned from7 sentences. Rules can be on pollution.Logical formLearned from7 sentences. Hopes can be for an end to (tailpipe pollution).Logical formLearned from7 sentences. A (pollution problem) may pertain-to a region.Logical formLearned from7 sentences. A (steel mill executive) may be chidden about pollution.Logical formLearned from7 sentences. Hundreds can be constituted-of-or-filled-with (pollution inspections).Logical formLearned from7 sentences. (Pollution inspections) can be at factories.Logical formLearned from7 sentences.