input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The most common bone tumor that occurs in children is:   (A) Osteosarcoma   (B) Ewing's sarcoma   (C) Metastatic carcinoma   (D) Multiple myeloma
output: ['(A) Osteosarcoma <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', "(A) Osteosarcoma  (B) Ewing's sarcoma  (C) Metastatic carcinoma  (D) Multiple myeloma <> possible answers", '  The most common bone tumor that occurs in children is: <> context']