Which physicians prescribe a medication of brand X? Tell me the name and position of those physicians.
SELECT DISTINCT T1.name ,  T1.position FROM physician AS T1 JOIN prescribes AS T2 ON T1.employeeid = T2.physician JOIN medication AS T3 ON T3.code = T2.medication WHERE T3.Brand  =  "X"
SELECT DISTINCT T1.name ,  T1.position FROM physician AS T1 JOIN prescribes AS T2 ON T1.employeeid = T2.physician JOIN medication AS T3 ON T3.code = T2.medication WHERE T3.Brand  =  "X"
[{'Name': 'John Dorian', 'Position': 'Staff Internist'}]