(Tailpipe emissions) can be harmful.Logical formLearned from14 sentences. (Climate treaty) can be harmful to the American economy.Logical formLearned from14 sentences. An incident can be harmful.Logical formLearned from14 sentences. A constraint can be harmful.Logical formLearned from14 sentences. A propaganda can be harmful.Logical formLearned from13 sentences. (Vehicle emissions) can be harmful.Logical formLearned from13 sentences. Activities can be harmful.Logical formLearned from13 sentences. Zinc can be harmful.Logical formLearned from13 sentences. (Pesticide residues) can be harmful.Logical formLearned from13 sentences. Products can be harmful to health.Logical formLearned from13 sentences. Circumstances can be harmful.Logical formLearned from13 sentences. A chemical can be harmful.Logical formLearned from13 sentences. Disclosures can be harmful.Logical formLearned from13 sentences. A phenomenon can be harmful.Logical formLearned from13 sentences. (Drug use) can be harmful.Logical formLearned from13 sentences.