A (suicide bombing) can be at a checkpoint.Logical formLearned from19 sentences. A headquarters may undergo bombings.Logical formLearned from19 sentences. A (bombing campaign) can be on a British mainland.Logical formLearned from19 sentences. Blame can be for a bombing.Logical formLearned from19 sentences. Some men may be accused of a bombing.Logical formLearned from19 sentences. A bombing may raise concerns.Logical formLearned from19 sentences. An airliner may undergo a (bombing attempt).Logical formLearned from19 sentences. A number of bombings may decline.Logical formLearned from19 sentences. A bombing can be an event.Logical formLearned from19 sentences. (Bombing tunnels) may run under a border.Logical formLearned from19 sentences. Bombings may be blamed on al-qaida.Logical formLearned from19 sentences. A reference can be to (suicide bombings).Logical formLearned from19 sentences. Bombings can be work of islamic militants.Logical formLearned from19 sentences. Targets may pertain-to bombings.Logical formLearned from19 sentences. A bombing can be spectacular.Logical formLearned from19 sentences.