An investment may undergo an operation.Logical formLearned from16 sentences. An operation may pertain-to an organization.Logical formLearned from16 sentences. (Operation iron) may hammer.Logical formLearned from16 sentences. A bombing can be an operation.Logical formLearned from16 sentences. Roles can be in operations.Logical formLearned from16 sentences. A (plant operation) can be safe.Logical formLearned from16 sentences. An operator may concern operations.Logical formLearned from16 sentences. (Reclamation operations) can be on lands.Logical formLearned from16 sentences. Connection can be with a (surface coal mining operation).Logical formLearned from16 sentences. Operations may be applied.Logical formLearned from16 sentences. A (cash flow) can be from operations.Logical formLearned from16 sentences. A covert operation can be in history.Logical formLearned from16 sentences. A history can be constituted-of-or-filled-with operation.Logical formLearned from16 sentences. A browser may undergo an operation.Logical formLearned from16 sentences. Operations can be secret.Logical formLearned from16 sentences.