(Freight trains) may operate.Logical formLearned from8 sentences. An unit may operate in a country.Logical formLearned from8 sentences. A male may operate in waters.Logical formLearned from8 sentences. Capacity may operate.Logical formLearned from8 sentences. A ferry may be operated by an operator.Logical formLearned from8 sentences. A female may operate from a base.Logical formLearned from8 sentences. Some sawmills may operate.Logical formLearned from8 sentences. A female may be operated by a military-or-other-action-organization.Logical formLearned from8 sentences. A ferry may be operated by a company.Logical formLearned from8 sentences. A person may operate a firm.Logical formLearned from8 sentences. Some cutters may be operated by a cutter-service.Logical formLearned from8 sentences. A prefecture may operate an airport.Logical formLearned from8 sentences. A ministry may operate until a month.Logical formLearned from8 sentences. A person may operate a line.Logical formLearned from8 sentences. A route may operate.Logical formLearned from8 sentences.