Wastes can be harmful.Logical formLearned from60 sentences. An act can be harmful.Logical formLearned from59 sentences. Words can be harmful.Logical formLearned from57 sentences. An event can be harmful.Logical formLearned from55 sentences. By-products can be harmful.Logical formLearned from53 sentences. Quantities can be harmful.Logical formLearned from53 sentences. Foods can be harmful.Logical formLearned from53 sentences. Products can be harmful.Logical formLearned from53 sentences. (Air pollutants) can be harmful.Logical formLearned from53 sentences. Proteins can be harmful.Logical formLearned from52 sentences. Reactions can be harmful.Logical formLearned from51 sentences. Cultural practices can be harmful.Logical formLearned from51 sentences. Fats can be harmful.Logical formLearned from50 sentences. Factors can be harmful.Logical formLearned from50 sentences. Others can be harmful.Logical formLearned from49 sentences.