Table schema:
CREATE TABLE medication (code VARCHAR, Brand VARCHAR); CREATE TABLE prescribes (physician VARCHAR, medication VARCHAR); CREATE TABLE physician (name VARCHAR, position VARCHAR, employeeid VARCHAR)

Question: Find the name and position of physicians who prescribe some medication whose brand is X?
SQL: 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"