An operation can be crude.Logical formLearned from22 sentences. An operation can be isolated.Logical formLearned from22 sentences. Operations can be by a country.Logical formLearned from22 sentences. An operation can be dirty.Logical formLearned from22 sentences. (Power plants) may undergo an operation.Logical formLearned from22 sentences. An airport may resume operation.Logical formLearned from22 sentences. Operations can be in a campaign.Logical formLearned from22 sentences. A (smuggling operation) can be alien.Logical formLearned from22 sentences. Some operations may be doed.Logical formLearned from22 sentences. An (operation deep freeze) may pertain-to a military-or-other-action-organization.Logical formLearned from22 sentences. Hotels may undergo an operation.Logical formLearned from22 sentences. A station may begin operations on a month.Logical formLearned from22 sentences. A male may be involved in operations.Logical formLearned from22 sentences. An attack may bear hallmarks of an operation.Logical formLearned from22 sentences. Equipment can be for operations.Logical formLearned from22 sentences.