An (ozone air pollution) can be harmful.Logical formLearned from1 sentences. A discussion of timetables can be harmful.Logical formLearned from1 sentences. An antibiotic can be harmful.Logical formLearned from1 sentences. A molecule may be considered harmful.Logical formLearned from1 sentences. Operations can be harmful.Logical formLearned from1 sentences. Ideas can be harmful to society.Logical formLearned from1 sentences. A training can be harmful.Logical formLearned from1 sentences. A (compound melamine) can be harmful.Logical formLearned from1 sentences. An incident can be harmful to an unit.Logical formLearned from1 sentences. A commute can be harmful to health.Logical formLearned from1 sentences. (Community standards) can be in determinning a material can be harmful to minors.Logical formLearned from1 sentences. Homosexuality can be harmful to institutions.Logical formLearned from1 sentences. Messages may be deemed harmful.Logical formLearned from1 sentences. Some nutrients can be harmful.Logical formLearned from1 sentences. Pests can be harmful to grapevines.Logical formLearned from1 sentences.