A threat can be deadly.Logical formLearned from653 sentences. A threat can be constituted-of-or-filled-with violence.Logical formLearned from653 sentences. Threats can be biological.Logical formLearned from645 sentences. A country may pose a threat.Logical formLearned from641 sentences. A threat can be to security.Logical formLearned from637 sentences. Threats can be empty.Logical formLearned from634 sentences. Threats can be physical.Logical formLearned from627 sentences. A threat can be renewed.Logical formLearned from627 sentences. A threat can be to humans.Logical formLearned from619 sentences. Threats can be constituted-of-or-filled-with retaliation.Logical formLearned from615 sentences. A threat can be to an existence.Logical formLearned from614 sentences. A threat can be ever-present.Logical formLearned from596 sentences. A threat can be physical.Logical formLearned from592 sentences. A threat can be to a (ground water).Logical formLearned from592 sentences. A junkyard can be a threat to a (ground water).Logical formLearned from590 sentences.