A knife can be forged.Logical formLearned from9 sentences. Knives can be in a back.Logical formLearned from9 sentences. A knife may pertain-to a doctor.Logical formLearned from9 sentences. A knife may drop.Logical formLearned from9 sentences. A (butterfly knife) may pertain-to a person.Logical formLearned from9 sentences. A knife may pertain-to a soldier.Logical formLearned from9 sentences. A sight may pertain-to a knife.Logical formLearned from9 sentences. A knife can be jeweled.Logical formLearned from9 sentences. A knife can be in a thigh.Logical formLearned from9 sentences. A (knife fight) may lead to a (jail sentence).Logical formLearned from9 sentences. Knives may pertain-to butchers.Logical formLearned from9 sentences. A (butcher knife) can be across a stone.Logical formLearned from9 sentences. A person may keep a knife.Logical formLearned from9 sentences. A knife may pertain-to an attacker.Logical formLearned from9 sentences. A male may have some knives.Logical formLearned from9 sentences.