A (bomb attack) may kill some persons.Logical formLearned from84 sentences. A (car bomb attack) can be in a world-city.Logical formLearned from83 sentences. Some bombs may detonate.Logical formLearned from83 sentences. A dirty bomb may undergo a detonation.Logical formLearned from83 sentences. A bomb may be attached to a bicycle.Logical formLearned from83 sentences. (Bomb attacks) may kill some persons.Logical formLearned from83 sentences. A (roadside bomb) may hit a patrol.Logical formLearned from82 sentences. A (suicide car bomb) may blow_up.Logical formLearned from82 sentences. Some (car bombs) can be in a world-city.Logical formLearned from82 sentences. A (time bomb) may tick.Logical formLearned from82 sentences. Acts may involve bombs.Logical formLearned from82 sentences. A (suicide bomber) may detonate a bomb.Logical formLearned from82 sentences. A patrol may be hited by a (roadside bomb).Logical formLearned from82 sentences. A (roadside bomb) may be targeted.Logical formLearned from82 sentences. A bomb may be planted by rebels.Logical formLearned from81 sentences.