A railroad may undergo an operation.Logical formLearned from57 sentences. An operation may pertain-to a firm.Logical formLearned from57 sentences. Peacekeeping operations can be international.Logical formLearned from57 sentences. Operations can be regulated.Logical formLearned from57 sentences. A corporation may undergo operations.Logical formLearned from57 sentences. Operations can be legal.Logical formLearned from57 sentences. An operation may be used.Logical formLearned from57 sentences. Some mode can be constituted-of-or-filled-with operation.Logical formLearned from57 sentences. An (operation power) can be reliable.Logical formLearned from57 sentences. (Manufacturing operations) can be global.Logical formLearned from57 sentences. Responsibility can be for some operations.Logical formLearned from57 sentences. An operation can be short.Logical formLearned from57 sentences. A raid can be an operation.Logical formLearned from57 sentences. Businesses may undergo operations.Logical formLearned from57 sentences. An operation may stop.Logical formLearned from57 sentences.