input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Single central pit is formed on the occlusal surface of   (A) Lower 1st premolar   (B) Upper 1st premolar   (C) Lower 2nd premolar   (D) Upper 2nd premolar
output: ['(C) Lower 2nd premolar <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Lower 1st premolar  (B) Upper 1st premolar  (C) Lower 2nd premolar  (D) Upper 2nd premolar <> possible answers', '  Single central pit is formed on the occlusal surface of <> context']