A warning can be by a president.Logical formLearned from69 sentences. A warning can be effective.Logical formLearned from68 sentences. Persons can be with a voice of warning.Logical formLearned from68 sentences. (Warning signs) can be obvious.Logical formLearned from68 sentences. Dangers may undergo a warning.Logical formLearned from68 sentences. Soldiers may fire (warning shots).Logical formLearned from68 sentences. A school can be in (warning status).Logical formLearned from67 sentences. A threat may undergo warnings.Logical formLearned from67 sentences. A warning can be salutary.Logical formLearned from67 sentences. Police may issue a warning.Logical formLearned from67 sentences. A bomb may undergo a warning.Logical formLearned from67 sentences. Warnings may pertain-to a US-city.Logical formLearned from66 sentences. A warning can be from a president.Logical formLearned from66 sentences. A warning may be illuminated on a dash.Logical formLearned from66 sentences. A warning can be to criminals.Logical formLearned from66 sentences.