Viruses can be respiratory.Logical formLearned from243 sentences. Contact can be with a virus.Logical formLearned from242 sentences. Viruses can be pathogenic.Logical formLearned from233 sentences. An impact may pertain-to a virus.Logical formLearned from232 sentences. Persons may live with a virus.Logical formLearned from225 sentences. A virus may cause cervical cancer.Logical formLearned from213 sentences. A virus can be contagious.Logical formLearned from211 sentences. Viruses can be recombinant.Logical formLearned from209 sentences. A virus can be rare.Logical formLearned from208 sentences. A vaccine can be against a virus.Logical formLearned from208 sentences. A male may contract a virus.Logical formLearned from207 sentences. A person may get a virus.Logical formLearned from206 sentences. Viruses can be related.Logical formLearned from205 sentences. Viruses can be dangerous.Logical formLearned from201 sentences. A family can be constituted-of-or-filled-with viruses.Logical formLearned from200 sentences.