A threat can be widespread.Logical formLearned from105 sentences. (Health threats) can be serious.Logical formLearned from105 sentences. Threats can be from insurgents.Logical formLearned from105 sentences. A threat can be to a public health.Logical formLearned from105 sentences. A threat may be posed by militants.Logical formLearned from105 sentences. A threat can be tangible.Logical formLearned from105 sentences. Threats can be to (world peace).Logical formLearned from104 sentences. (Nuclear threats) may pertain-to a country.Logical formLearned from104 sentences. A credible threat can be to a candidate.Logical formLearned from104 sentences. A job can be under threat.Logical formLearned from104 sentences. A threat can be grave.Logical formLearned from104 sentences. A threat can be shared.Logical formLearned from104 sentences. Threats can be deadly.Logical formLearned from104 sentences. Threats can be to international security.Logical formLearned from104 sentences. A threat can be to public safety.Logical formLearned from104 sentences.