input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following structure is not removed in radical neck dissection-   (A) Spinal accessory nerve   (B) Submandibular   (C) Tail of parotid   (D) Level 2 b lymph nodes
output: ['(C) Tail of parotid <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Spinal accessory nerve  (B) Submandibular  (C) Tail of parotid  (D) Level 2 b lymph nodes <> possible answers', '  Which of the following structure is not removed in radical neck dissection- <> context']