An (attack bomber) may pertain-to a country.Logical formLearned from19 sentences. A bomber can be high-altitude.Logical formLearned from19 sentences. A bomber may blow_up a bus.Logical formLearned from19 sentences. A (b-52 bomber pilot) may pertain-to a nation.Logical formLearned from19 sentences. Some (suicide bombers) may be arrested.Logical formLearned from19 sentences. Persons may send bombers.Logical formLearned from19 sentences. A (suicide bomber) may attack a base.Logical formLearned from19 sentences. An explosion may be set_offed by a (suicide bomber).Logical formLearned from19 sentences. A (suicide bomber) may detonate an explosive belt.Logical formLearned from19 sentences. A (suicide car bomber) may attack an (army convoy).Logical formLearned from19 sentences. Some (suicide bombers) may detonate themselves.Logical formLearned from19 sentences. A female (suicide bomber) may detonate explosives.Logical formLearned from19 sentences. Some (suicide bombers) may strike targets.Logical formLearned from19 sentences. A (suicide car bomber) may kill some national guard.Logical formLearned from19 sentences. A (suicide bomber) may hit a (police station).Logical formLearned from19 sentences.