Flashes may go_off.Logical formLearned from9 sentences. A signal may go_off.Logical formLearned from9 sentences. A system may go_off.Logical formLearned from9 sentences. A (light bulb) may go_off above a head.Logical formLearned from9 sentences. Sprinklers may go_off.Logical formLearned from9 sentences. Food may go_off.Logical formLearned from9 sentences. A blast may go_off in an area.Logical formLearned from9 sentences. Bombs may go_off around persons.Logical formLearned from9 sentences. Triggers may go_off.Logical formLearned from9 sentences. A bomb may go_off at a house.Logical formLearned from9 sentences. Some racers may go_off.Logical formLearned from9 sentences. A blast may go_off in a car.Logical formLearned from9 sentences. An explosion may go_off in_front_of persons.Logical formLearned from9 sentences. A series of (bomb blasts) may go_off in succession.Logical formLearned from9 sentences. Men may go_off.Logical formLearned from9 sentences.