A back may pertain-to a plane.Logical formLearned from1 457 sentences. A plane may undergo a crash.Logical formLearned from1 288 sentences. A plane may carry some passengers.Logical formLearned from1 238 sentences. Planes may pertain-to persons.Logical formLearned from1 214 sentences. Planes can be allied.Logical formLearned from1 172 sentences. Planes may pertain-to a military-or-other-action-organization.Logical formLearned from1 166 sentences. A plane may fly.Logical formLearned from1 079 sentences. A plane may pertain-to an international-political-entity.Logical formLearned from1 003 sentences. A person may get on a plane.Logical formLearned from998 sentences. A front may pertain-to a plane.Logical formLearned from993 sentences. A (campaign plane) may pertain-to a male.Logical formLearned from988 sentences. Planes can be civilian.Logical formLearned from977 sentences. A pilot may pertain-to a plane.Logical formLearned from966 sentences. A wreckage may pertain-to a plane.Logical formLearned from963 sentences. Planes may pertain-to a company.Logical formLearned from943 sentences.