input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A child presents with abdominal colic and hematuria on ultrasonography a stone 2.5 cm in diameter is seen in the renal pelvis. The next step in management of this case is :   (A) Pyelolithotomy   (B) Nephroureterostomy   (C) Conservative   (D) ESWL
output: ['(D) ESWL <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Pyelolithotomy  (B) Nephroureterostomy  (C) Conservative  (D) ESWL <> possible answers', '  A child presents with abdominal colic and hematuria on ultrasonography a stone 2.5 cm in diameter is seen in the renal pelvis. The next step in management of this case is : <> context']