A bombing can be on a month.Logical formLearned from140 sentences. (Train bombings) may pertain-to year.Logical formLearned from138 sentences. A role can be in some bombing.Logical formLearned from137 sentences. A wave can be constituted-of-or-filled-with (car bombings).Logical formLearned from137 sentences. Bombings may undergo an investigation.Logical formLearned from137 sentences. Some bombing can be in a world-city.Logical formLearned from137 sentences. A (suicide bombing) can be suspected.Logical formLearned from137 sentences. A role can be in some bombings.Logical formLearned from137 sentences. Bombings can be in a month.Logical formLearned from137 sentences. Bombings can be repeated.Logical formLearned from137 sentences. A base may undergo a bombing.Logical formLearned from137 sentences. (Suicide bombings) can be coordinated.Logical formLearned from136 sentences. A (suicide bombing) may pertain-to month.Logical formLearned from136 sentences. A bombing may pertain-to persons.Logical formLearned from136 sentences. A (bombing campaign) may continue.Logical formLearned from136 sentences.