An aircraft may go missing.Logical formLearned from43 sentences. An aircraft may be made from (aluminum tubing).Logical formLearned from43 sentences. Occupants may pertain-to an aircraft.Logical formLearned from43 sentences. Aircrafts can be obsolete.Logical formLearned from43 sentences. An aircraft can be driven.Logical formLearned from43 sentences. A structure may pertain-to an aircraft.Logical formLearned from43 sentences. Some aircraft can be in operation.Logical formLearned from43 sentences. Damage can be to aircraft.Logical formLearned from43 sentences. (Aircraft carrier groups) may pertain-to a country.Logical formLearned from43 sentences. A hazard can be to aircraft.Logical formLearned from43 sentences. An aircraft can be profitable.Logical formLearned from43 sentences. Aircrafts may fly.Logical formLearned from43 sentences. A (combat aircraft) can be advanced.Logical formLearned from43 sentences. Aircrafts can be heavy.Logical formLearned from43 sentences. A (strike aircraft) can be long-range.Logical formLearned from43 sentences.