A probe may pertain-to an explosion.Logical formLearned from11 sentences. Some explosions may rip through crowds.Logical formLearned from11 sentences. An explosion may increase a risk of a (well blowout).Logical formLearned from11 sentences. Explosions may occur before some a.m..Logical formLearned from11 sentences. A (gas explosion) can be at a school.Logical formLearned from11 sentences. Ash may undergo explosions.Logical formLearned from11 sentences. An explosion may pertain-to a decade.Logical formLearned from11 sentences. An explosion may be shorn.Logical formLearned from11 sentences. An attack can be an explosion.Logical formLearned from11 sentences. Explosions can be in (apartment buildings).Logical formLearned from11 sentences. A (death toll) can be in explosions.Logical formLearned from11 sentences. Video may show an (engine explosion).Logical formLearned from11 sentences. An explosion may injure some soldiers.Logical formLearned from11 sentences. (Video games) may undergo an explosion.Logical formLearned from11 sentences. A (land mine explosion) may kill some persons.Logical formLearned from11 sentences.