Metals can be harmful.Logical formLearned from2 sentences. Environmental policies can be harmful.Logical formLearned from2 sentences. Parents may deem harmful.Logical formLearned from2 sentences. A list can be harmful.Logical formLearned from2 sentences. Work can be harmful.Logical formLearned from2 sentences. Drinks can be harmful to (tooth enamel).Logical formLearned from2 sentences. Drugs may be considered harmful.Logical formLearned from2 sentences. Pesticides can be harmful to birds.Logical formLearned from2 sentences. Conflicts may prove harmful to a child.Logical formLearned from2 sentences. Restrictions may be considered harmful to consumers.Logical formLearned from2 sentences. Ultraviolet rays can be harmful.Logical formLearned from2 sentences. Ways can be harmful to a natural environment.Logical formLearned from2 sentences. (Sulfur emissions) can be harmful.Logical formLearned from2 sentences. (Anthrax spores) can be harmful.Logical formLearned from2 sentences. Action can be harmful to a process.Logical formLearned from2 sentences.