A cartilage can be artificial.Logical formLearned from19 sentences. Casings can be artificial.Logical formLearned from19 sentences. Grasses can be artificial.Logical formLearned from19 sentences. Prostheses can be artificial.Logical formLearned from19 sentences. (Time limits) can be artificial.Logical formLearned from19 sentences. Excitement can be artificial.Logical formLearned from19 sentences. Seeds can be artificial.Logical formLearned from19 sentences. ..s can be artificial.Logical formLearned from19 sentences. A (fiber precinct) can be artificial.Logical formLearned from19 sentences. A reason can be artificial.Logical formLearned from19 sentences. A flavor can be artificial.Logical formLearned from19 sentences. Causes can be artificial.Logical formLearned from19 sentences. Tendons can be artificial.Logical formLearned from19 sentences. (Heart patients) can be artificial.Logical formLearned from19 sentences. A (time frame) can be artificial.Logical formLearned from19 sentences.