input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** All ceramic crown is placed on mandibular canine, what can we do to prolong the life of crown:   (A) Glazing   (B) Polishing.   (C) Out of occlusion (Infraocclusion).   (D) Group function.
output: ['(D) Group function. <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Glazing  (B) Polishing.  (C) Out of occlusion (Infraocclusion).  (D) Group function. <> possible answers', '  All ceramic crown is placed on mandibular canine, what can we do to prolong the life of crown: <> context']