Some illegal drugs can be harmful to persons.Logical formLearned from2 sentences. A male can be harmful to a female.Logical formLearned from2 sentences. Species can be harmful.Logical formLearned from2 sentences. Withdrawals can be harmful to (water resources).Logical formLearned from2 sentences. Fungal diseases can be harmful.Logical formLearned from2 sentences. Invasive species can be harmful.Logical formLearned from2 sentences. Enrollment can be harmful to interests of a recipient.Logical formLearned from2 sentences. An abundance of ozone can be harmful to humans.Logical formLearned from2 sentences. An exception can be harmful.Logical formLearned from2 sentences. Floods can be harmful.Logical formLearned from2 sentences. (Spray residues) can be harmful.Logical formLearned from2 sentences. Cigars can be harmful to health.Logical formLearned from2 sentences. A mercury can be harmful.Logical formLearned from2 sentences. Works can be harmful.Logical formLearned from2 sentences. Invasives can be harmful.Logical formLearned from2 sentences.