Everyone can be on a plane.Logical formLearned from209 sentences. (Civilian planes) may pertain-to a country.Logical formLearned from209 sentences. A plane can be experimental.Logical formLearned from208 sentences. A fleet can be constituted-of-or-filled-with planes.Logical formLearned from208 sentences. A plane may turn.Logical formLearned from207 sentences. A wing may pertain-to a plane.Logical formLearned from204 sentences. A (campaign plane) may pertain-to a US-president.Logical formLearned from204 sentences. A plane can be from a world-city.Logical formLearned from204 sentences. Some persons may be killed in a (plane crash).Logical formLearned from203 sentences. A (transport plane) may pertain-to a military-or-other-action-organization.Logical formLearned from203 sentences. A plane may be bounded for a world-city.Logical formLearned from202 sentences. Hijackers may pertain-to planes.Logical formLearned from202 sentences. A person may fly a plane.Logical formLearned from201 sentences. A body may pertain-to a plane.Logical formLearned from201 sentences. Some planes may collide.Logical formLearned from200 sentences.