A network may cover some cities.Logical formLearned from20 sentences. A conference may cover issues.Logical formLearned from20 sentences. Some books may cover topics.Logical formLearned from20 sentences. A constituency may cover a district.Logical formLearned from20 sentences. A route may cover some miles.Logical formLearned from20 sentences. A civil parish may cover an area.Logical formLearned from20 sentences. An airport may cover some acres.Logical formLearned from20 sentences. A male may cover some topics.Logical formLearned from20 sentences. A campus may cover an area.Logical formLearned from20 sentences. Books may cover topics.Logical formLearned from20 sentences. Industries may be covered.Logical formLearned from20 sentences. A drug may be covered.Logical formLearned from20 sentences. Research may cover a range of topics.Logical formLearned from20 sentences. A war may be covered.Logical formLearned from20 sentences. Facilities may be covered.Logical formLearned from20 sentences.