A (rescue operation) may fail.Logical formLearned from19 sentences. A new type can be constituted-of-or-filled-with operation.Logical formLearned from19 sentences. An operation may pertain-to a security-department.Logical formLearned from19 sentences. A person may be killed in an operation.Logical formLearned from19 sentences. An operation can be impossible.Logical formLearned from19 sentences. An army may carry_out an operation.Logical formLearned from19 sentences. A person can be responsible for an operation.Logical formLearned from19 sentences. Operations can be deep-sea.Logical formLearned from19 sentences. An operation can be tough.Logical formLearned from19 sentences. Operations can be against a militia.Logical formLearned from19 sentences. An operation can be an undertaking.Logical formLearned from19 sentences. Operations can be on the ground.Logical formLearned from19 sentences. A revamp may pertain-to operations.Logical formLearned from19 sentences. An army may begin an operation.Logical formLearned from19 sentences. A person may head a (rescue operation).Logical formLearned from19 sentences.