A jet may crash with some persons.Logical formLearned from21 sentences. A starting quarterback can be for jets.Logical formLearned from21 sentences. Jets may have a lead.Logical formLearned from21 sentences. A change can be in a (jet stream).Logical formLearned from21 sentences. A northern branch may pertain-to a (jet stream).Logical formLearned from21 sentences. Jets may shoot_down some planes.Logical formLearned from21 sentences. An aircraft can be a jet.Logical formLearned from21 sentences. Jets can be constituted-of-or-filled-with plasma.Logical formLearned from21 sentences. (Passenger jets) may fly.Logical formLearned from21 sentences. Jets may return to bases.Logical formLearned from21 sentences. A new generation can be constituted-of-or-filled-with (jet fighters).Logical formLearned from21 sentences. (Fighter jets) can be from a country.Logical formLearned from21 sentences. A (safety order) may affect some jets.Logical formLearned from21 sentences. A (fighter jet) can be off a coast.Logical formLearned from21 sentences. A jet may make a landing.Logical formLearned from21 sentences.