input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Winged rubber dam retainer in endodontics advantages are all except   (A) Radiographs are good showing full length of canals   (B) Stability   (C) Provide extra bucco-lingual retraction   (D) Dam, clamp and frame placed in one operation
output: ['(A) Radiographs are good showing full length of canals <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Radiographs are good showing full length of canals  (B) Stability  (C) Provide extra bucco-lingual retraction  (D) Dam, clamp and frame placed in one operation <> possible answers', '  Winged rubber dam retainer in endodontics advantages are all except <> context']