A company may operate in a continent.Logical formLearned from18 sentences. Units may operate in a country.Logical formLearned from18 sentences. Submarines may operate.Logical formLearned from18 sentences. A police-department may operate a (police station).Logical formLearned from18 sentences. A government may be operated.Logical formLearned from18 sentences. A destroyer may operate.Logical formLearned from18 sentences. An airline may be operated.Logical formLearned from18 sentences. An airline may operate services.Logical formLearned from18 sentences. A facility may be operated by a company.Logical formLearned from18 sentences. (Power plants) may operate.Logical formLearned from18 sentences. Scientists may operate.Logical formLearned from18 sentences. Communities may operate.Logical formLearned from18 sentences. Persons may operate on a basis.Logical formLearned from18 sentences. Some precincts may operate.Logical formLearned from18 sentences. A group may operate some stores.Logical formLearned from18 sentences.