input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Diffusion capacity of carbon monoxide is decreased in all except:   (A) Polycythemia   (B) Interstitial lung disease   (C) Emphysema   (D) Pulmonary vascular disease
output: ['(A) Polycythemia <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Polycythemia  (B) Interstitial lung disease  (C) Emphysema  (D) Pulmonary vascular disease <> possible answers', '  Diffusion capacity of carbon monoxide is decreased in all except: <> context']