Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Student (StuID VARCHAR, advisor VARCHAR)
TABLE: CREATE TABLE Faculty (FacID VARCHAR, rank VARCHAR)

### Question ###
Show the ids of students whose advisors are professors.

### Accurate SQL ###

SELECT T2.StuID FROM Faculty AS T1 JOIN Student AS T2 ON T1.FacID = T2.advisor WHERE T1.rank = "Professor"