A (bomb threat) can be reported.Logical formLearned from17 sentences. A (bomb attack) may undergo warnings.Logical formLearned from17 sentences. Bombs may go_off at some p.m..Logical formLearned from17 sentences. A bomb may explode in a church.Logical formLearned from17 sentences. Some bombs may explode on buses.Logical formLearned from17 sentences. A bomb may explode after some p.m..Logical formLearned from17 sentences. A bomb can be on a flight.Logical formLearned from17 sentences. A bomb may go_off in a hotel.Logical formLearned from17 sentences. A (bomb explosion) may kill some persons.Logical formLearned from17 sentences. Persons may test bombs.Logical formLearned from17 sentences. Some attacks can be work of bombs.Logical formLearned from17 sentences. A technology may exist for a super bomb.Logical formLearned from17 sentences. A bomb may strike a house.Logical formLearned from17 sentences. Some (bomb craters) may be scarred.Logical formLearned from17 sentences. Bombs may be sent to embassies.Logical formLearned from17 sentences.