query: SELECT Advisor FROM STUDENT WHERE city_code  =  "BAL"
question: Who-all the advisors for students live in one city with city code "BAL"?
query_toks: SELECT Advisor FROM STUDENT WHERE city_code = `` BAL ''
query_toks_no_value: select advisor from student where city_code = value
question_toks: Who-all the advisors for students live in one city with city code "BAL"?