input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 31-year-old woman comes to the physician because of dragging pelvic pain and a 3 kg (6 lb 9 oz) weight loss over the past 6 months. Menses occur at irregular 30- to 45-day intervals; her last menstrual period was 5 weeks ago. Her temperature is 38°C (100.4°F), heart rate is 102/min, and blood pressure is 128/84 mm Hg. Physical examination shows hyperreflexia. Urine pregnancy test is negative. Ultrasonography shows a 6-cm hypoechoic adnexal mass. This adnexal mass is most likely derived from which of the following cell types?   (A) Germ cells   (B) Chorionic epithelial cells   (C) Endometrial cells   (D) Stromal cells
output: ['(A) Germ cells <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Germ cells  (B) Chorionic epithelial cells  (C) Endometrial cells  (D) Stromal cells <> possible answers', '  A 31-year-old woman comes to the physician because of dragging pelvic pain and a 3 kg (6 lb 9 oz) weight loss over the past 6 months. Menses occur at irregular 30- to 45-day intervals; her last menstrual period was 5 weeks ago. Her temperature is 38°C (100.4°F), heart rate is 102/min, and blood pressure is 128/84 mm Hg. Physical examination shows hyperreflexia. Urine pregnancy test is negative. Ultrasonography shows a 6-cm hypoechoic adnexal mass. This adnexal mass is most likely derived from which of the following cell types? <> context']