input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Most common malignant bone tumor in child:   (A) Osteosarcoma   (B) Ewing sarcoma   (C) Metastatic carcinoma   (D) Osteoma
output: ['(A) Osteosarcoma <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Osteosarcoma  (B) Ewing sarcoma  (C) Metastatic carcinoma  (D) Osteoma <> possible answers', '  Most common malignant bone tumor in child: <> context']