A glance can be threatening.Logical formLearned from18 sentences. Forms can be threatening.Logical formLearned from18 sentences. A country may look threatening.Logical formLearned from18 sentences. An expression can be threatening.Logical formLearned from17 sentences. (Rain clouds) can be threatening.Logical formLearned from17 sentences. A video can be threatening.Logical formLearned from17 sentences. Moments can be threatening.Logical formLearned from17 sentences. A kind can be threatening.Logical formLearned from17 sentences. Air can be threatening.Logical formLearned from17 sentences. A (radio call) can be threatening.Logical formLearned from17 sentences. A buildup can be threatening.Logical formLearned from17 sentences. A volcano can be threatening.Logical formLearned from17 sentences. A conflict can be threatening.Logical formLearned from17 sentences. A weapon can be threatening.Logical formLearned from16 sentences. Stability can be threatening.Logical formLearned from16 sentences.