Persons may go_off.Logical formLearned from15 sentences. A (camera flash) may go_off.Logical formLearned from15 sentences. A flashbulb may go_off.Logical formLearned from15 sentences. A male may go_off to a continent.Logical formLearned from15 sentences. A female may go_off to bed.Logical formLearned from15 sentences. A sister may go_off to college.Logical formLearned from15 sentences. A son may go_off to war.Logical formLearned from15 sentences. A game may go_off.Logical formLearned from15 sentences. A cannon may go_off.Logical formLearned from15 sentences. (Air raid sirens) may go_off.Logical formLearned from15 sentences. A (suicide vest) may go_off.Logical formLearned from15 sentences. A person may go_off.Logical formLearned from15 sentences. Rockets may go_off.Logical formLearned from15 sentences. A bell may go_off in a head.Logical formLearned from15 sentences. (Fire alarm) may go_off.Logical formLearned from15 sentences.