A bomb may explode under a train.Logical formLearned from7 sentences. A bomb may explode at a (shopping center).Logical formLearned from7 sentences. A homemade bomb may explode.Logical formLearned from7 sentences. A (suicide bomber) may explode a bomb.Logical formLearned from7 sentences. A parcel may explode.Logical formLearned from7 sentences. A bomb may explode in a public bus.Logical formLearned from7 sentences. Some bomb may explode in a bus.Logical formLearned from7 sentences. Flight may explode midair.Logical formLearned from7 sentences. A (gasoline tank) may explode.Logical formLearned from7 sentences. A laboratory may explode.Logical formLearned from7 sentences. Discontent may explode into protest.Logical formLearned from7 sentences. Shells may explode within some yards.Logical formLearned from7 sentences. A person may explode himself.Logical formLearned from7 sentences. A country may explode into civil war.Logical formLearned from7 sentences. Girls may explode.Logical formLearned from7 sentences.