Gas can be harmful to breathe.Logical formLearned from6 sentences. Substitutes can be harmful.Logical formLearned from6 sentences. A (tobacco product) can be harmful.Logical formLearned from6 sentences. An undertow can be harmful.Logical formLearned from6 sentences. Molds can be harmful.Logical formLearned from6 sentences. Harmful (tax practices) may distort the global economy.Logical formLearned from6 sentences. A training can be harmful to health.Logical formLearned from6 sentences. Disease can be harmful to humans.Logical formLearned from6 sentences. A disease can be harmful to persons.Logical formLearned from6 sentences. Disclosures of classified information can be harmful to (national security).Logical formLearned from6 sentences. A turnout can be harmful to a candidacy.Logical formLearned from6 sentences. A monopoly can be harmful.Logical formLearned from6 sentences. Falsehoods can be harmful.Logical formLearned from6 sentences. A second-hand smoke can be harmful.Logical formLearned from6 sentences. Social influences can be harmful.Logical formLearned from6 sentences.