input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 62-year-old man presents to the emergency department for evaluation of a low-grade fever, worsening fatigue, and mild intermittent abdominal pain that is not affected by eating. He reports that over the last 6 months he slept a lot more than usual and lost 14.9 kg (33 lbs) without trying to lose weight. He also complains of chest pain and shortness of breath that is worse when he is working and in the yard. There is no significant family history. His long-standing male partner passed away 2 years ago in a fatal car accident. His blood pressure is 145/75 mm Hg, the pulse is 90/min, the respiratory rate is 23/min, and the temperature is 38°C (100.5°F). On physical examination, he has pale mucous membranes, conjunctival hemorrhages, and petechiae on his lower extremities. There is a new-onset high-pitched blowing diastolic murmur best heard over the right upper sternal border. His head bobs with each heartbeat. There are small, painless, red macules on both palms. His spleen is palpable 3 cm below the left costal margin. His laboratory results are shown below. Hemoglobin 8.4 g/dL Mean corpuscular volume 72 µm3 Platelet count 400,000/mm3 Leukocytes 6,000/mm3 Serum ferritin 8 ng/mL Serum iron 27 µg/dL Total iron-binding capacity 450 µg/dL Colonoscopy with biopsy is later performed showing a neoplastic growth in the descending colon. Which of the following is the most likely explanation for his cardiac findings?   (A) Treponema pallidum   (B) Malignant colonic neoplasm   (C) Collagen vascular disease   (D) Group D streptococci
output: ['(D) Group D streptococci <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Treponema pallidum  (B) Malignant colonic neoplasm  (C) Collagen vascular disease  (D) Group D streptococci <> possible answers', '  A 62-year-old man presents to the emergency department for evaluation of a low-grade fever, worsening fatigue, and mild intermittent abdominal pain that is not affected by eating. He reports that over the last 6 months he slept a lot more than usual and lost 14.9 kg (33 lbs) without trying to lose weight. He also complains of chest pain and shortness of breath that is worse when he is working and in the yard. There is no significant family history. His long-standing male partner passed away 2 years ago in a fatal car accident. His blood pressure is 145/75 mm Hg, the pulse is 90/min, the respiratory rate is 23/min, and the temperature is 38°C (100.5°F). On physical examination, he has pale mucous membranes, conjunctival hemorrhages, and petechiae on his lower extremities. There is a new-onset high-pitched blowing diastolic murmur best heard over the right upper sternal border. His head bobs with each heartbeat. There are small, painless, red macules on both palms. His spleen is palpable 3 cm below the left costal margin. His laboratory results are shown below.\nHemoglobin 8.4 g/dL\nMean corpuscular volume 72 µm3\nPlatelet count 400,000/mm3\nLeukocytes 6,000/mm3\nSerum ferritin 8 ng/mL\nSerum iron 27 µg/dL\nTotal iron-binding capacity 450 µg/dL\nColonoscopy with biopsy is later performed showing a neoplastic growth in the descending colon. Which of the following is the most likely explanation for his cardiac findings? <> context']