An (ash cloud) may destroy (jet engines).Logical formLearned from15 sentences. An attack can be on a jet.Logical formLearned from15 sentences. A surge can be in (jet fuel prices).Logical formLearned from15 sentences. A cabin may pertain-to a jet.Logical formLearned from15 sentences. (F-16 fighter jets) may undergo a purchase.Logical formLearned from15 sentences. A jet may come_down.Logical formLearned from15 sentences. Occupants of a jet can be unhurt.Logical formLearned from15 sentences. (30-mkm fighter jets) may undergo a purchase.Logical formLearned from15 sentences. An (executive jet) may make an (emergency landing).Logical formLearned from15 sentences. An airliner may collide with an (executive jet).Logical formLearned from15 sentences. Jets may bomb a foreign ministry.Logical formLearned from15 sentences. Remains may pertain-to a jet.Logical formLearned from15 sentences. A (flight recorder) may pertain-to a jet.Logical formLearned from15 sentences. Wreckage may pertain-to a jet.Logical formLearned from15 sentences. A (f-15 fighter jet) may pertain-to a country.Logical formLearned from15 sentences.