input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** To prevent porosity in dental porcelain it should be baked:   (A) In presence of air   (B) In vacuum   (C) For long period   (D) Under pressure
output: ['(B) In vacuum <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) In presence of air  (B) In vacuum  (C) For long period  (D) Under pressure <> possible answers', '  To prevent porosity in dental porcelain it should be\nbaked: <> context']