input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following is not a content of mesorectal fascia?   (A) Inferior rectal vein   (B) Superior rectal vein   (C) Pararectal lymph node   (D) Inferior mesenteric plexus
output: ['(A) Inferior rectal vein <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Inferior rectal vein  (B) Superior rectal vein  (C) Pararectal lymph node  (D) Inferior mesenteric plexus <> possible answers', '  Which of the following is not a content of mesorectal fascia? <> context']