(Flight recorders) may pertain-to a plane.Logical formLearned from200 sentences. A plane may pertain-to missionaries.Logical formLearned from200 sentences. A plane may disappear from (radar screens).Logical formLearned from199 sentences. A (plane crash) can be in a country.Logical formLearned from196 sentences. Planes can be flat.Logical formLearned from194 sentences. A plane may strike.Logical formLearned from193 sentences. A small plane may undergo a crash.Logical formLearned from193 sentences. A plane may be destroyed.Logical formLearned from192 sentences. A plane can be constituted-of-or-filled-with existence.Logical formLearned from192 sentences. A plane can be to a US-city.Logical formLearned from192 sentences. A plane may land at airport.Logical formLearned from192 sentences. A plane may undergo a use.Logical formLearned from191 sentences. A plane can be from a world-city.Logical formLearned from190 sentences. Planes may crash.Logical formLearned from189 sentences. Planes can be in air.Logical formLearned from189 sentences.