Some substances can be harmful to health.Logical formLearned from3 sentences. Variations can be harmful.Logical formLearned from3 sentences. A practice can be harmful.Logical formLearned from3 sentences. (Plastic bags) can be harmful.Logical formLearned from3 sentences. A smell can be harmful.Logical formLearned from3 sentences. Mold can be harmful to health.Logical formLearned from3 sentences. Efforts can be harmful.Logical formLearned from3 sentences. Cholesterol can be harmful.Logical formLearned from3 sentences. Evils can be harmful to society.Logical formLearned from3 sentences. Lenses can be harmful.Logical formLearned from3 sentences. Flaws can be harmful.Logical formLearned from3 sentences. (Background processes) can be harmful.Logical formLearned from3 sentences. Alcohol can be harmful to health.Logical formLearned from3 sentences. An illusion can be harmful.Logical formLearned from3 sentences. Stuffs can be harmful.Logical formLearned from3 sentences.