Knives can be clean.Logical formLearned from17 sentences. Persons may carry knives.Logical formLearned from17 sentences. A knife can be to a chest.Logical formLearned from17 sentences. A knife can be in a belt.Logical formLearned from17 sentences. A handle may pertain-to a knife.Logical formLearned from17 sentences. Some knives may be stained with blood.Logical formLearned from17 sentences. Terrorists may be armed with knives.Logical formLearned from17 sentences. Police may find knives.Logical formLearned from17 sentences. A knife can be crude.Logical formLearned from17 sentences. A knife can be in a mouth.Logical formLearned from16 sentences. A knife can be on a belt.Logical formLearned from16 sentences. A male may put a knife to a throat.Logical formLearned from16 sentences. A knife can be heated.Logical formLearned from16 sentences. A male may carry a knife.Logical formLearned from16 sentences. A female may plunge a knife.Logical formLearned from16 sentences.