input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Best investigation for metabolic disorders is?   (A) Western blot   (B) Tandem mass spectrometry   (C) PCR   (D) Gel electrophoresis
output: ['(B) Tandem mass spectrometry <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Western blot  (B) Tandem mass spectrometry  (C) PCR  (D) Gel electrophoresis <> possible answers', '  Best investigation for metabolic disorders is? <> context']