Persons may have knives.Logical formLearned from19 sentences. (Throwing knives) may pertain-to a male.Logical formLearned from19 sentences. A person may like knives.Logical formLearned from19 sentences. Knives can be rusty.Logical formLearned from19 sentences. Knives can be concealed.Logical formLearned from19 sentences. A person may have knives.Logical formLearned from19 sentences. A person may plunge a knife.Logical formLearned from19 sentences. Knives may undergo a selection.Logical formLearned from19 sentences. Knives can be dangerous.Logical formLearned from19 sentences. A knife may pertain-to a guillotine.Logical formLearned from19 sentences. Knives can be hidden.Logical formLearned from19 sentences. A knife may pertain-to a US-president.Logical formLearned from19 sentences. Rioters may be armed with knives.Logical formLearned from19 sentences. Some men may hold knives.Logical formLearned from19 sentences. A knife can be broken.Logical formLearned from19 sentences.