(Hijack attacks) can be during (phone conversations).Logical formLearned from1 sentences. A hijack can be intended.Logical formLearned from1 sentences. Jets can be vulnerable to hijack.Logical formLearned from1 sentences. A system can be on a (hijack mission).Logical formLearned from1 sentences. Hijacks may reinforce proteins.Logical formLearned from1 sentences. A (hijack squad) may pertain-to a government-agency.Logical formLearned from1 sentences. Special agent can be for a (hijack squad).Logical formLearned from1 sentences. A (ferry hijack) may underscore a battle.Logical formLearned from1 sentences. Hijacks may pertain-to a government-agency.Logical formLearned from1 sentences. A complaint can be against hijacks.Logical formLearned from1 sentences. A hijack may pertain-to a history.Logical formLearned from1 sentences. (Flight attendant hijacks) can be armed.Logical formLearned from1 sentences. A series can be constituted-of-or-filled-with (aircraft hijacks).Logical formLearned from1 sentences. Some universal code can be for a hijack.Logical formLearned from1 sentences.