A bomb may explode in a (subway car).Logical formLearned from19 sentences. Some bomb may explode on a street.Logical formLearned from19 sentences. A rocket may explode in ground.Logical formLearned from19 sentences. Bombs may explode on some buses.Logical formLearned from19 sentences. Bomblets may explode on impact.Logical formLearned from19 sentences. A male may explode a vest.Logical formLearned from19 sentences. A story may explode.Logical formLearned from19 sentences. A bomb may explode under a truck.Logical formLearned from19 sentences. A (suicide car bomb) may explode at a checkpoint.Logical formLearned from19 sentences. Weapons may explode.Logical formLearned from19 sentences. A parcel may explode.Logical formLearned from19 sentences. An airliner may explode over a country.Logical formLearned from19 sentences. A (nail bomb) may explode.Logical formLearned from18 sentences. An (ammunition dump) may explode.Logical formLearned from18 sentences. A male may explode on a scene.Logical formLearned from18 sentences.