Physical changes can be harmful.Logical formLearned from4 sentences. A pollutant can be harmful.Logical formLearned from4 sentences. Organic chemicals can be harmful.Logical formLearned from4 sentences. Vapors can be harmful.Logical formLearned from4 sentences. A dna can be harmful.Logical formLearned from4 sentences. Materials can be harmful to juveniles.Logical formLearned from4 sentences. Poison can be harmful.Logical formLearned from4 sentences. Disclosure can be harmful to a parent.Logical formLearned from4 sentences. An association can be harmful.Logical formLearned from4 sentences. A physical contact can be harmful.Logical formLearned from4 sentences. Attempts can be harmful.Logical formLearned from4 sentences. (Climate change) can be harmful.Logical formLearned from4 sentences. (Tax competition issues) can be harmful.Logical formLearned from4 sentences. A drag can be harmful.Logical formLearned from4 sentences. Relations can be harmful.Logical formLearned from4 sentences.