An operation can be uninterrupted.Logical formLearned from125 sentences. Operations can be long-term.Logical formLearned from125 sentences. Operations may pertain-to a service-agency.Logical formLearned from125 sentences. A (ground operation) can be large-scale.Logical formLearned from124 sentences. Operations can be in an area.Logical formLearned from123 sentences. A vessel may undergo an operation.Logical formLearned from123 sentences. A first year may pertain-to an operation.Logical formLearned from123 sentences. An operation can be rare.Logical formLearned from123 sentences. Operations can be automated.Logical formLearned from123 sentences. An operation may undergo an execution.Logical formLearned from123 sentences. Oversight may pertain-to operations.Logical formLearned from123 sentences. Operations can be delicate.Logical formLearned from123 sentences. An airline may undergo operations.Logical formLearned from122 sentences. Operations can be daily.Logical formLearned from122 sentences. Persons may launch an operation.Logical formLearned from122 sentences.