input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Repeated fracture of a porcelain fused to metal restoration is primarily due to   (A) Occlusal trauma   (B) Inadequately designed framework   (C) Improper firing schedule   (D) Failure to use metal conditioner
output: ['(B) Inadequately designed framework <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Occlusal trauma  (B) Inadequately designed framework  (C) Improper firing schedule  (D) Failure to use metal conditioner <> possible answers', '  Repeated fracture of a porcelain fused to metal restoration is primarily due to <> context']