Bodies may undergo an operation.Logical formLearned from20 sentences. A third day may pertain-to an operation.Logical formLearned from20 sentences. Operations can be behind (enemy lines).Logical formLearned from20 sentences. Forces may carry_out operations.Logical formLearned from20 sentences. Operations may pertain-to week.Logical formLearned from20 sentences. Operation can be against militants.Logical formLearned from19 sentences. (Operation costs) can be high.Logical formLearned from19 sentences. (Space operations) can be manned.Logical formLearned from19 sentences. Operations can be timely.Logical formLearned from19 sentences. An operation may pertain-to (security forces).Logical formLearned from19 sentences. Peacekeeping operations can be in a region.Logical formLearned from19 sentences. Operations can be in years.Logical formLearned from19 sentences. An operation can be against terrorists.Logical formLearned from19 sentences. Operations may undergo a nationalization.Logical formLearned from19 sentences. An operation can be timely.Logical formLearned from19 sentences.