Forces may operate from a soil.Logical formLearned from12 sentences. Groups may operate from a soil.Logical formLearned from12 sentences. Gunmen may operate in a region.Logical formLearned from11 sentences. A person may operate speedboats.Logical formLearned from11 sentences. (Oil firms) may operate in a country.Logical formLearned from11 sentences. A parliament may operate.Logical formLearned from11 sentences. Some enterprises may operate.Logical formLearned from11 sentences. Some ngoes may operate in a country.Logical formLearned from11 sentences. A gang may operate in an area.Logical formLearned from11 sentences. An aircraft may operate a flight.Logical formLearned from11 sentences. Some ships may be operated by a company.Logical formLearned from11 sentences. A police-department may operate.Logical formLearned from11 sentences. An (oil company) may operate in a country.Logical formLearned from11 sentences. An airline may operate domestic services.Logical formLearned from11 sentences. A service may operate on a line.Logical formLearned from11 sentences.