An aircraft may pertain-to a language.Logical formLearned from188 sentences. Aircrafts can be allied.Logical formLearned from186 sentences. A (drone aircraft) can be unmanned.Logical formLearned from182 sentences. Aircraft may fire missiles.Logical formLearned from179 sentences. Engines may pertain-to an aircraft.Logical formLearned from179 sentences. Aircrafts may pertain-to a person.Logical formLearned from177 sentences. An aircraft may pertain-to a company.Logical formLearned from176 sentences. An aircraft can be efficient.Logical formLearned from176 sentences. An aircraft may undergo destruction.Logical formLearned from172 sentences. Aircrafts may pertain-to an international-political-entity.Logical formLearned from171 sentences. Some aircrafts may be destroyed.Logical formLearned from170 sentences. An aircraft can be operational.Logical formLearned from169 sentences. Aircrafts may pertain-to a type.Logical formLearned from168 sentences. An aircraft may undergo a downing.Logical formLearned from164 sentences. Aircrafts can be friendly.Logical formLearned from161 sentences.